Soldato
I think this is what Badoo is about. Facebook isn't the only social network, you know.

Sounds like internet dating...
Sally is crazy about dinosaur art
Can you link me to her FB profile ? Id like to get to know her better.
Sounds like an autistic version of LinkedIn...
... making the world a little bit smaller. .
I would really not be interested. I can understand it would be a good way to find people who share the same hobbies/taste as yourself but I prefer to old fashioned way of doing it. It'd be like meeting someone but already knowing everything about them. I like people to be different to me, I've got enough of me already!
How about developing an app where heterosexual men can find other heterosexual men to hang out with in a non-homosexual way. You know play football, go fishing and things, go camping and get really drunk and pass out. Maybe some light mutual touching and physique admiration, but not in a gay way. Just straight heterosexual guys who happen to prefer the company of men, hanging out.
Lolkwerk