The nice thing is, it's not "competition" for Facebook as they serve different needs (and markets).
This figure makes no sense to me. Even assuming it's targetting a very specific population that I share no connection to, it's still a ridiculous figure. The biggest (in revenue) dating website in France (and apparently, in Europe, too) is Meetic. It had less than a million registered users in december 2010 in total, including other companies in the group.
After a quick search on independent consumer satisfaction services, turns out there are a lot of people whose accounts were created through fishing or the likes, or even without consent. Just by reading the tons of user comments, this really looks like a major scammy, fishy, spammy and illegal service (illegal at least in France, since it refuses to comply to our Privacy & Freedom directives).
There are some satisfied comments, too, so this service probably works well enough in some ways, I just can't take these figures at face value.
I don't know if there is any benefit you could get by having many accounts, but if there is, I'm really sure it is used a lot.
Others are men with a "dating" account and a "family" account.
I guess the same happens in Badoo. Also, they must have a lot of dead accounts and count them (much like Microsoft does).
Their numbers do seem inflated, I don't know how much (50%? 100%?). I'm their active users must be at least an order of magnitude lower (my own account is inactive at the moment).
Their 'keep up' mails are also a beauty: "Check out those 2934 females that likes your profile" ( i'm not making up the number )
This website should be down, if only for environmental reasons u_u;