eHarmony is ONLY a 16+ years old obsolete site and a HOAX, based on a big scientific fraud, only sustained by big marketing budget.
The Big Five normative test used by eHarmony, had been proven/revealed as an incomplete and incorrect model to assess/measure personality of persons.
Moreover eHarmony was copycatted in several countries like the online dating sites EliteSingles in Canada, Australia, USA, UK; eDarling in Spain, German, France, Russia; also TeAmo in Russia is another copycat of eHarmony. eSynchrony in Singapore, MiMediaManzana in Colombia, Peru, Mexico, Chile, etc.
Very easy to copycat eHarmony, but very difficult to innovate: a 100 times better algorithm than eHarmony.
eHarmony had a "Tinder style" site called Jazzed from August 2010 to August 2012 (free online dating site intended to be a Purgatory and eHarmony intended to be the Heaven).
Lack Of Innovation & Decadence can summarize the Online Dating Industry.
C-Level executives are more worried about their golf scores than their company’s long term strategy and innovations.
C-level executives are cooking barbecues under the water (selling smoke) and not paying attention to latest research from Academics which could be beneficial for the Online Dating Industry.