Sunday, February 27, 2011

eHarmony's latest research

Compatibility is all about a high level on personality* similarity* between prospective mates for long term mating with commitment.
Please remember there are different ways to assess personality and there are different ways to calculate similarity. Thus, "personality similarity" is a broad concept.

WorldWide, there are 5,000 -over five thousand- online dating sites
 but no one is using the 16PF5 to assess personality of its members!
 but no one calculates similarity with a quantized pattern comparison method!



PAPER "Assortative mating, convergence, and satisfaction in married couples"

Measures of personality were collected from a sample of 417 married couples who met via eHarmony since 2005 before they met and twice after they were married (2 years period).  results indicate that similarity and convergence in psychological characteristics may benefit relationships and that while spouses may choose partners with similar personalities they do not become more like their partners in the early part of their marriage.

There are two reasons why romantic partners may be similar. The first is positive assortment, or the tendency for individuals to select similar partners. The second is convergence, or the tendency for partners to become more alike over time. Similarity in psychological characteristics predicts greater relationship satisfaction. Similarity in personality did not change over time, which is not surprising considering change in personality is gradual across adulthood.
If similarity is due to positive assortment, it suggests that the roots of relationship success may be established before individuals meet.

Participants: 417 married couples, who met via eHarmony, participated for a 2-year period.
The average male in the sample was 43.75 years old (SD = 11.08 years) and the average female was 40.73 years old (SD = 10.21 years).
They were first assessed at the time they registered for service. On average the second assessment took place 550 days after the original assessment and the final assessment took
place 1,350 days after the original assessment.
At the time of the final assessment, the average couple had been married for 2 years and 10 months with a range of 4 years and 8 months to 2 years and 2 months.
As a part of registration to the eHarmony service, all participants completed the eHarmony relationship questionnaires (EHRQ). Responses to EHRQ were used to match individuals with compatible potential partners.  As a part of the eHarmony service, all participants were invited to communicate with between 1 and 1,079 other eHarmony users (M = 121.9, SD = 133.2). Each match met proprietary criteria for compatibility established by eHarmony.
eHarmony's proprietary matching algorithms were not used to determine similarity (between mates) in that study. Similarity was calculated using a couple centered approach (Klohnen & Mendelsohn, 1998; Luo & Klohnen, 2005).

As of August 2005 (the date of the initial follow-up survey), eHarmony had contact information on over 5,000 couples either married or engaged to be married. In August 2005 these couples were invited to participate in a marketing study designed to provide information on the efficacy of the eHarmony matching service.


POSTER "Similarity predicts relationship satisfaction in Brazil"


-------------------------------------------------------------------------------
If eHarmony were a medicine, it will be performing as placebo.
eHarmony's personality similarity approach is correct, but how eHarmony assesses personality (intoxicated with Big5) and how eHarmony calculates similarity (low precision method) is incorrect.
I say the success rate* of eHarmony is less than 10%**.
*success rate == percentage of persons who leave the site because they found someone compatible.
**estimated by Fernando Ardenghi using reverse engineering.
The majority, over 90% of eHarmony's members are not going to achieve a long term relationship with commitment (or marriage) using that site.

Wednesday, February 23, 2011

paper "Personality similarity, perceptual accuracy ... "

NEW FRESH paper "Personality similarity, perceptual accuracy, and relationship satisfaction in dating and married couples"

For decades, researchers have been striving to identify factors that lead to relationship and marital satisfaction, and the link between personality traits and relationship satisfaction has received much attention. The prediction of marital satisfaction based on personality characteristics of both partners has a long history and previous research has demonstrated the robust relationships between relationship quality, functioning and outcomes, and broad personality traits. A recent meta-analysis of Montoya, Horton, and Kirchner (2008) on the impact of actual and perceived similarity on interpersonal attraction indicated that perceived similarity was a significant predictor of interpersonal attraction. ["Is actual similarity necessary for attraction? A meta-analysis of actual and perceived similarity" Results indicated that the associations between interpersonal attraction and both actual similarity (r = .47) and perceived similarity (r = .39) were significant and large. ] However, in that meta-analysis, relationship satisfaction was considered as a measure of interpersonal attraction and the perceptual and actual personality similarity were not confined to personality traits.


Only 3 major discoveries can help to revolutionize the online dating industry.
Major online dating sites can not ignore them any more, or they will die instead.

I) Several studies showing contraceptive pills users make different mate choices, on average, compared to non-users.
II) People often report partner preferences that are not compatible with their choices in real life. 
III) Compatibility is all about a high level on personality* similarity* between prospective mates for long term mating with commitment.
*personality measured with a normative test.
*similarity: there are different ways to calculate similarity, it depends on how mathematically is defined.

Also Personality Based Recommender Systems are the next generation of recommender systems because they perform FAR better than Behavioural ones (past actions and pattern of personal preferences)
That is the only way to improve recommender systems, to include the personality traits
of their users and they need to calculate personality similarity between them.

WorldWide, there are over 5,000 online dating sites
but no one is using the 16PF5 (or similar test) to assess personality of its members.
Without offering the 16PF5 (or similar test measuring exactly the 16 personality factors) for serious dating, it will be impossible to innovate and revolutionize the Online Dating Industry.

Tuesday, February 22, 2011

Self-Knowledge of Personality: Do People Know Themselves?

PAPER: Self-Knowledge of Personality: Do People Know Themselves?

"Abstract
The intuition that we have privileged and unrestricted access to ourselves – that we inevitably know who we are, how we feel, what we do, and what we think – is very compelling. Here, we review three types of evidence about the accuracy of self-perceptions of personality and conclude that the glass is neither full nor empty. .........."


i.e. Self Predictability of Personality Traits is Dismal, never ask online daters to describe themselves!

That is why the 16PF5 is needed to revolutionize the Online Dating Industry.

Monday, February 21, 2011

An International Survey about Online Dating usage.


"A Global Shift in the Social Relationships of Networked Individuals: Meeting and Dating Online Comes of Age" February 14, 2011 part of the "Me, My Spouse and the Internet Project" at the Oxford Internet Institute, University of Oxford, supported by a grant from eHarmony

The Oxford Internet Institute (OII) conducted an online questionnaire with 12,500+ couples from 18 countries:

Key Findings
* Online dating is a complement rather than a substitute for offline dating.
* Online dating is more prevalent among older people (40 and over) who are seeking a relationship than it is among younger (below 40) people.
* There are discernable differences cross-nationally, and across regions, in terms of dating practices, online behaviors, and Internet use. Respondents in Japan, which is known for high technology adoption, are more reluctant to embrace online dating, whereas in Brazil, which is often seen as a site of gregarious public spaces, people tend to be more comfortable with meeting people online.
* The ways that people are seeking out partners are becoming more of a blend of offline and online networks, which has been called networked individualism, rather than simply more or less group based.

Age
The average age in the sample is 40.7. That age is 42 for men and 39 for women. The age distribution of the sample is approximately normal with a slight positive skew towards older respondents.

Tuesday, February 15, 2011

"How has Internet dating changed society?"

"How has Internet dating changed society?"

I saw that "paper" first last Jan 20, 2011
then it was reposted Feb 14, 2011

The word INNOVATION/s is mentioned only once by Mark Brooks, not by the other 39 executive members of the Internet Dating Executive Alliance.


Words / Concepts mentioned:


MATCHMAKING mentioned 13 times

COMPATIBILITY mentioned 7 times
ALGORITHM/s mentioned 7 times
QUALITY mentioned 7 times

BACKGROUND mentioned 5 times

BACKGROUND CHECKS mentioned 3 times
PERSONALITY mentioned 3 times
SIMILAR mentioned 3 times
SCIENTIFIC mentioned 3 times
IDENTITY mentioned 3 times
SCAMMERS mentioned 3 times

KILL mentioned 2
SKILL mentioned 2
SECURITY mentioned 2
EVOLUTION mentioned 2
REVOLUTION mentioned 2

REVOLUTIONIZED mentioned 1 
REVOLUTIONARY mentioned 1
PROFILING mentioned 1
MATCHMAKER/s mentioned 1



Words / Concepts NEVER mentioned:
SIMILARITY
QUALITY NORMS
LEGISLATION
IDENTITY VERIFICATION
RECOMMENDER
RECOMMENDATION
HACKER/s
PRECISION







Monday, February 14, 2011

about divorce statistics at eHarmony

Preliminary findings about divorce statistics at eHarmony.

Based on 2 flawed "brochures"

The one from Chadwick Martin Bailey  (Match)
The one from Harris (eHarmony)
2009 eHarmony Marriage Metrics Study: 148,311 marriages and 1,130,006 non-married, monogamous relationships (ESTIMATED TO BE) started by eHarmony, between January 1, 2008 and June 30, 2009.
The majority of persons who leave eHarmony are not going to marry, they are going to be in a non-married monogamous relationship.
They should investigate divorce rates in married and non-married but in long term monogamous relationships couples.

It is intriguing why they publish that "divorce statistics" in their blog instead of publishing papers like:
"Assortative mating, convergence, and satisfaction in married couples"
"Similarity predicts relationship satisfaction in Brazil"
eHarmony / eHarmonyLabs does not promote own papers
Surely because eHarmony's Management Team knows eHarmony's personality similarity approach is correct, but how eHarmony assesses personality and how eHarmony calculates similarity is incorrect

If eHarmony were a medicine, it will be performing as placebo.
The success rate* of eHarmony is less than 10%**.
*success rate == percentage of persons who leave the site because they found someone compatible.
**estimated by Fernando Ardenghi using reverse engineering.

The majority, over 90% of eHarmony's members are not going to achieve a long term relationship with commitment (or marriage) using that site.

Friday, February 11, 2011

Meetic Group 2010 revenue "up" but shares DOWN



2010 ANNUAL REVENUE: Euros 186.0m (+17.8%)
Mobile % of total revenue 2%

Pro forma 2009 revenue, incorporating Match's European activity as if it had been integrated on 1st January 2009, was Euros 182.3 million.
2010 revenue, which totalled Euros 186.0 million, would thus have been up +2%.

In terms of total subscriber numbers, the Meetic group had 858,197 subscribers at 31st December 2010, compared to 844,360 at 31st December 2009 and 869,022 at 30th September 2010.

eHarmony Advice hacked in June 2009


It seems it was circulating between black hat hackers (the bad ones) a rumour about how to hack PlentyOfFish, eHarmony and other online dating sites.
Some white hat hackers (the good ones) received that information and decided to prove if that was true.


It takes nearly 4 seconds to download the info from a profile using SQL injections, 15 profiles per minute, and 900 per hour.
21,600 per day, and 1,388 days to download a 30 million profiles database (3.8 years)

It also seems several online dating sites, like PlentyOfFish and eHarmony HAD BEEN ALERTED IN ADVANCE, during 2009 about security holes, but they had not paid the attention it deserved.


See also from June 2009
http://eharmony-blog.com/1519
"eHarmony is in big trouble: Have spammers hacked eHarmony Advice?"

PlentyOfFish and eVow Snake Oil Liniments

Last January 2007 (4+ years ago), Mark Brooks predicted "A free eHarmony will emerge"
Of course he knew in advance PlentyOfFish was going to launch a Compatibility Matching Algorithm.
The PlentyofFish Compatibility Predictor (POFCP) was launched in May 2007, then it was rebranded as The PlentyofFish Relationship Chemistry Predictor (POFCP).

PlentyOfFish tried to be the next "free eHarmony" but made 3 mistakes.
It lasted 3 years without revolutionizing the Online Dating Industry. It was only a HOAX.

Then in May 2010, The PlentyofFish Marriage Predictor was launched.
In 5 previous posts I had written about how the PlentyOfFish Marriage Predictor is a HOAX, a complete SCAM.
1 2 3 4 5

In September 2010, eVow's compatibility matching system was launched.
A paid site from the owners of PlentyOfFish.
eVow's compatibility matching system does not have any scientific proof. I suspect it is only "home grown" based on similar interests, values and birth order item.
It does not include any personality assessment nor personality similarity calculation.

Both compatibility systems, the one from PlentyofFish and the one from eVow are complete HOAXES. No one is scientifically proven.

The writer and journalist Lori Gottlieb (March 2006) noted about the growing number of Internet dating sites that are using the science of attraction to match singles: "their efforts mark the early days of a social experiment of unprecedented proportions, involving millions of couples and possibly extending over the course of generations"

The most common usage of the phrase "Snake oil" is as a derogatory term for quack medicine. The expression is also applied metaphorically to any product with exaggerated marketing but questionable and/or unverifiable quality or benefit.
Random House Dictionary describes a "quack" as a "fraudulent or ignorant pretender to medical skill" or "a person who pretends, professionally or publicly, to have skill, knowledge, or qualifications he or she does not possess; a charlatan."

In a previous post I had also written about "The horse named Jim in the Online Dating Industry."
Some new & fresh screenshots











Thursday, February 10, 2011

the "mobile" concept evolving.

Slide 4 shows the "mobile" concept had been evolving.

5 years ago "mobile" was smartphones, Treos and Blackberrys.

Now "mobile" is tablets.

I was featured in the Latest Mobile Social Web 2.0 Forecasts, Challenges & Regulations 2010-2014 from Juniper Research saying "with the majority of subscribers using netbooks/iPads with mobile broadband modems, or WiFi, rather than smartphones. "

Saturday, February 5, 2011

The real secret of PlentyOfFish (POF)

PlentyOfFish (POF) is a free online dating site. Its revenue is estimated to be around USD 30 million per year, mostly by advertising (almost all provided by Google AdSense). Over 90% of the ads displayed at POF are from paid online dating sites, like Match / Chemistry, eHarmony, etc.
POF has 30,000,000,000 pageviews per year and approximately 6,000,000 active users.
Operating costs seem to be in the range of USD 27 million a year because POF permanently needs to advertise itself on Facebook, Yahoo and even Google via AdWords. Also in Canada's national television and in music videos like "Telephone" Lady Gaga.
POF has to be constantly buying traffic.
To remain profitable, POF not only needs to show ads for paid dating sites (an average 4 ads provided by Adsense, each one paid USD 0.20 CPM, or USD 0.80 on average for the whole ads displayed in 1,000 pageviews) but at least these ads have to get 3 clicks every 10,000 pageviews, they must be opened and viewed, people have to click those ads and become visitors of those paid online dating sites. But that is not enough, 1 of 10 visitors should load its profile in the paid online dating site, becoming a basic user; but that is not enough again; 1 of those 3 basic users referred by POF must become a  premium user, subscribing a 3 months paid membership and paying USD 90 (on average using a credit card, to allow automatic rebilling).
Thanks to that, POF receives an average commission of USD 20.
If POF has 6,000,000 active users and can convert 1 user to a premium member every 100,000 pageviews, it sends 300,000 annual customers to paid online dating sites.
The paid online dating site that placed an ad in POF using Google AdWords, pay an average USD 0.40 CPM, i.e acquiring a new customer costs USD 40 plus a commission paid to POF (in the range of USD 20), USD 60 is the total cost to acquire a customer (using POF as a marketing tool).
If POF refers 300,000 clients to paid online dating sites, it has an income of approximately USD 6,000,000 for commissions. That explains its successful business model.
POF needs to show ads from paid online dating sites and convert visitors sent from POF into customers of those paid online dating sites; so POF will also collect payments: the commissions for subscribers memberships.
That is the main explanation of why it works so well in the anglophone countries Canada, United States, United Kingdom of Great Britain and Northern Ireland, Ireland and Australia, and not in other countries.
POF database is compartmentalized in a special way, so its users only see what interest them, most likely through a recommendation engine based on the user's previous behavior (Behavioural recommender system).
In online dating, if the database doubles its size, it possibly doubles income, but operating costs are multiplied by 3 or 4, they exponentially grow. That explains why POF must have a simple (and insecure) design.
If a new user, a man says he likes slim tall blonde with blue eyes and unmarried women, but he searches profiles of fat short brunettes women and of that group only sends messages to smokers and divorced, the recommendation algorithm remains showing him those similar profiles.
If a new user, a woman says she likes athletic tall blond with blue eyes and single men, but respond to messages of fat short black smokers and divorced men; the recommendation algorithm shows similar profiles.
The main threat for POF is future legislation to regulate Online Dating Sites.
During last September 2010, the owners of POF had launched a paid online dating site, named eVow, unsuccessful until now.

Source: personal estimation from Fernando Ardenghi
POF in numbers
30,000,000,000 annual pageviews
USD 30 million revenue (USD 24 million by ads, USD 6 million by comissions paid by other dating sites)
USD 27 million operating costs.
6,000,000 active users
4 AdSense ads displayed on average per pageview (USD 0.80 CPM per 4 ads, USD 0.20 each one)
[You do not see ads if you use Firefox/Opera explorer with adblock plus addon]
3 clicks on average per 10,000 pageviews; visitors to paid online dating sites.
1 basic member referred per 33,333 pageviews (a person who visits the paid online dating site who showed the ad at POF and he/she creates a profile there becoming a basic member)
1 paid member referred per 100,000 pageviews (a basic member who upgrades to premium paying at least USD 90 with his/her credit card. The cost to acquire that client is USD 60 = USD 20 comission paid to POF + USD cost of the ad showed using AdWords at USD 0.40 CPM)
300,000 annual paid clients sent to paid dating sites like Match/Chemistry, eHarmony, etc.

POF is seen as a place for casual/short-term relationships.

More info at "A 52 page report from ComScore"

* The daters who pay for Match/Chemistry (revenue: USD 430 million) and eHarmony (revenue: 280 million) are nearly the same ones who want to use PlentyOfFish for free.
Slide # 9.

Thursday, February 3, 2011

PlentyOfFish (POF) still sends passwords

PlentyOfFish (POF) still sends passwords in plain text.

Security does not matter. Only to maximize ads revenue per user.
30.000.000.0000 pageviews per year
USD 30.000.000 revenue per year (at USD 1 CPM, *average* per all the ads showed in any page)
 90%+ of the ads showed at PlentyOfFish are from paid online dating sites.
Operating Costs? My bet USD 27.000.000 per year

eHarmony opened the umbrella before it rains.

eHarmony opened the umbrella before it rains.

Match is now being sued (in USA) mainly for showing inactive profiles.
In a recent article, the CEO for Latam Countries, Mr. Claudio Gandelman from Match Argentina recognized 75% inactive profiles.


Lawsuit Claims More Than Half Of Match Profiles Are Inactive Or Fake

Wednesday, February 2, 2011

IAC had bought OKCupid.

The 2010 revenue of PlentyOfFish is USD 30 million.


IAC had bought OKCupid.


 
Free/freemium online dating sites like PlentyOfFish and OKCupid are only marketing tools useful to send prospective customers to paid online dating sites like Chemistry and eHarmony.
When free users got tired of free sites, they migrate to a paid one.

I estimate the 2010 revenue of OKCupid at USD 21 million (checking Alexa data)

OKcupid flawed article
"Why You Should Never Pay For Online Dating"



dating methods I hade reviewed and debunked

List of sites / dating methods I hade reviewed and debunked, defeated, denounced as HOAXES

WeAttract (2003)
PerfectMatch, Duet Total Compatibility System.
eHarmony 
Chemistry.
Match Affinity , Meetic Affinity, Dating Direct Affinity (Ulteem).
Be2.
Parship.
The PlentyOfFish Chemistry Predictor.
The PlentyOfFish Marriage Predictor.
eVow's compatibility matching method.
12Like.
LittleHint.
datingDNA.
Zoosk Scientific Matching Service/System.
True.
MyType.
ScientificMatch.
Basisnote.
GenePartner.
RewardingLove.
ButterfliesAgain.
IntelligentElite.
Nomoredates.
ThomasKnowsPeople.
MatchMatrix.
Moonit.
All of them are like placebo!

Tuesday, February 1, 2011

THE Lesson from latest PlentyOfFish incident.


Latest PlentyOfFish incident was only the beginning of a new era of challenges for the Online Dating Industry.

As you should know there are plenty of Online Dating Executives wasting precious time, speaking stupidities at iDate conferences but not discussing the big Agenda for the Online Dating Industry.

1) Matchmaking Industry.
The Online Dating Industry should had killed the Matchmaking Industry and other Offline Dating Proposals since some years ago, but they are still alive, rosy and with good health.
The Matchmaking Industry is a USD 1,000 million in USA and Canada and another USD 1,000 million in Europe.

2) WorldWide paying members.
There are over 100 million singles in USA and Canada and over 100 million singles in Europe.
WorldWide there are more than 5,000 online dating sites but they have less than 5 million persons as paid members. The Online Dating Market remains enormous!

3) Traffic of paid dating sites declined sharply during 2010 and continues. They are full of inactive profiles (some fake ones)

* The 2009 and 2010 showed big sites like Match, Chemistry, True, eHarmony, PerfectMatch, Be2, Parship, Meetic and others have WorldWide less traffic than 2 years ago or decaying in traffic.
It was not due to economic downturn or the traction of social networking sites.
It was a new phenomenon. Daters had understood that the entire Online Dating Industry for serious daters in 1st World Countries is a HOAX, performing as a Big Online Casino, with low successful rates.

* Free/freemium online dating sites like PlentyOfFish and OKCupid are only marketing tools useful to send prospective customers to paid online dating sites like Chemistry and eHarmony.
When free users got tired of free sites, they migrate to a paid one.

4) The biggest scammers are not from Ghana or Nigeria.
Match, eHarmony, Chemistry, PerfectMatch, True, Meetic, Be2, Parship and others, what all they did since 1995 until now, were scamming paying members with marketing and credit card billing trickery.
The Online Dating Industry needs a major earthquake or a major cataclysm to extinguish those large dinosaurs.
The 2010 was the year of Online Dating Fatigue phenomenon, you saw daters leaving in droves from old paid sites like Match, Chemistry, True, eHarmony, PerfectMatch, Be2, Parship, Meetic, etc.
Main prediction for the Online Dating Industry 2011: The Online Dating Fatigue Phenomenon will get even worse during 2011.
PlentyOfFish had reached operating ceiling, now decaying. eVow can not take off
MySpace is going to be the biggest dating application for fun, in ... Facebook!!!


The entire Online Dating Industry for serious daters in 1st World Countries has:
* No Legislation.
* No Quality Norms.
* Low reliable background checks.

The entire Online Dating Industry for serious daters in 1st World Countries is a HOAX, performing as a Big Online Casino, with a low effectiveness/efficiency level of their matching algorithms (less than 10%).

Lack Of Innovation & Decadence can summarize the Online Dating Industry 2010.


WorldWide, there are over 5,000 (five thousand) online dating sites; "dating" is a broad word to define a large group of different proposals.
Online Dating Sites can be classified as:
1.0: "Browsing/Searching Options, Powerful Searching Engines"
1.5: "Unidirectional Recommendation Engines"
2.0: "Matching based on Self-Reported Data / Bidirectional Recommendation Engines"
3.0: "Compatibility Matching Algorithms"


There is a range convergence phenomenon between the 3 mains tools online dating sites offer now: Searching by your own, Recommendation Engines and Compatibility Matching Methods based on proprietary models or the Big5. Any member receives on average 3 to 4 prospective mates as selected / recommended / compatible for dating purposes per 1,000 members screened in the database.

They all 3 are performing the same for serious daters, with a high percentage of false positives, like gun machines firing flowers.

- No actual online dating site offering a compatibility matching method [eHarmony, eSyncrony, True, MeeticAffinity, Chemistry, PerfectMatch, Be2, Parship, MyType, RewardingLove, PlentyOfFishMarriagePredictor and others] has a credible peer reviewed Scientifc Paper by Academics (public scrutiny of findings) from different Universities showing its matching algorithm can match prospective partners who will have more stable and satisfying relationships with low divorce rates than couples matched by chance, astrological destiny, personal preferences, searching on one's own, or other technique as the control group.
They are all like placebo, because they have less or at least the same precision as searching on one's own OR less or at least the same precision as recommendation engines [in the range of 3 or 4 persons compatible per 1,000 persons screened]
Moreover
The success rate* of Chemistry is less than 6%**.
The success rate* of eHarmony is less than 10%**.
*success rate == percentage of persons who leave the site because they found someone compatible.
**estimated by Fernando Ardenghi using reverse engineering.

The majority, over 90% of their members are not going to achieve a long term relationship with commitment (or marriage) using those sites.

The Online Dating Industry is performing like the Pharmaceutical and Cosmetic Industry before the USA Food and Drug Administration was created.
The Online Dating Industry is selling elixirs, tonics, snake oil liniments and other patent medicine.

5) Innovations are not adding more bells and whistles to actual online dating sites.
No more Imitation. No more Improvement.
The Online Dating Industry needs Innovations, but the innovations the Online Dating Industry needs will come from only one source: the latest discoveries in theories of romantic relationships development with commitment.

Only 3 major discoveries can help to revolutionize the online dating industry.
I) Several studies showing contraceptive pills users make different mate choices, on average, compared to non-users. "Only short-term but not long-term partner preferences tend to vary with the menstrual cycle"

II) People often report partner preferences that are not compatible with their choices in real life. (FORGET Behavioural recommender systems)

III) Compatibility is all about a high level on personality(1) similarity(2) between prospective mates for long term mating with commitment.
In compatibility matching methods there are 2 steps:
(1) to objectively measure personality traits or other human variables.
* WorldWide, there are over 5,000 online dating sites but no one is using the 16PF5 (or similar test like 15FQ+) to assess personality of its members.
Without offering the 16PF5 (or similar test measuring exactly the 16 personality factors, the complete inventory as established by Dr. Raymond Cattell during 1949) for serious dating, it will be impossible to innovate and revolutionize the Online Dating Industry.
The ensemble (whole set of different valid possibilities) of the 16PF5 is: 10E16, big number as All World Population is nearly 6.7 * 10E9
(2) to calculate compatibility between prospective mates.
* I had invented a new quantitative method to calculate compatibility between prospective mates, based on quantized pattern comparison (part of pattern recognition by correlation) named LIFEPROJECT METHOD.

PlentyofFish hacking incident.


A person introduced his fingers inside Mr. Frind's mouth and tried to pull out a rotten tooth, but Mr. Frind, a thankless, shut his mouth, bit the fingers and said he himself would take care of that issue.