LOL! After thinking about it, your scenario sounds pretty possible! and quite hilarious!
I think it would either be like you said, a bunch of nerds and old people who all live with their parents and have no lives, or it would be a legitimately amazing party, a night nobody would ever forget, because honestly, if half of the people here are who they say they are, it would be amazing to get together and party the night away.
i think it would be pretty funny and kinda awesome. its always fun to meet new people and it would make everyone on the site a little more connected. I don't think everyone on here is either an old man or a nerd, I think it could be pretty fun.