What would your profile look like? I'm a little confused. At first glance, does this add any features past what 4chan has already done? It's 100% anonymous and you get real answers (though I think we've got different definitions of 'real'). I think if you can make 4chan "a nice place to visit" with your friends' photo/text updates with the same all-data-expiring-soon policy, you've got a niche.

I'm also reminded by CupidWithFriends, though that's a slightly different concept.