The concept of monitoring social site streams for dating/authenticity purposes reminds me of a site I heard about recently, http://ge.la.to/

There are many sites struggling to gain traction in mobile aspects of dating, and the problem is likely that it's difficult to get a critical mass of users set up before using the feature is appealing.

Regardless, I'm not aware of anyone who has put all this together successfully. Dating (in many aspects, but surely online) has shown itself to be a tough nut to crack.