There's a lot of fraud in Germany (via OPW)

https://www.onlinepersonalswatch.com/news/2019/02/interview-with-grant-langston-ceo-of-eharmony.html

FUNNY interview: Parship CEO via OPW
https://onlinedatingsoundbarrier.blogspot.com/2019/01/funny-interview-parship-ceo-via-opw.html
  eHarmony is ONLY a 18+  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. It is a HOAX, a FRAUD to use the Big Five normative test in year 2019. 

eHarmony was copycatted in several countries like
the online dating sites EliteSingles / SilverSingles in Canada, Australia, USA, UK, Chile, Mexico; eDarling in Spain, German, France, Russia;
also TeAmo in Russia is another copycat of eHarmony;
esync (eSynchrony) in Singapore,
MiMediaManzana in Colombia, Peru, Mexico, Chile, etc.,
Marrily in India
andLemonSwan in Germany and other countries.

More fraud from eHarmony UK talking about "Future of Dating 2018"
https://onlinedatingsoundbarrier.blogspot.com/2018/12/more-fraud-from-eharmony-uk-talking.html

The Online Dating Industry is selling elixirs, tonics, snake oil liniments and other patent medicine and performing like the Pharmaceutical and Cosmetic Industry before the USA Food and Drug Administration was created where any player can make any claim without any credentials.
 
Parship and ElitePartner: old, obsolete sites and frauds.
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/05/parship-elite-group-gmbh-2015-financials.html

Proof of FRAUD from ... Affiny by Meetic (It is the same as MatchAffinity in 2010)
https://onlinedatingsoundbarrier.blogspot.com/2018/12/proof-of-fraud-from-affiny-by-meetic-it.html

LemonSwan Fünf-Faktoren-Modell == Five Factor Model
https://onlinedatingsoundbarrier.blogspot.com/2018/04/lemonswan-funf-faktoren-modell-five.html
 

The 8 tips to innovate in the Online Dating Industry!
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/12/the-8-tips-to-innovate-in-online-dating.html