I think it's a great idea, but I'm reluctant to try it mainly because my guess is it's filled with other dudes right now..
You just have to find the right nitch to go after. Is it online dating (listen to the mixergy match.com interview - their key was gaining women's trust)? Do people want to talk face to face before going out on a date? Could it be founders looking for founders? I don't know. But what I do know is that you should find a segment that could benefit from this the most and go after them. Who's pain is the biggest in this area?