Only if you actually get enough people in the door.. Plus sometimes invite systems mean you just get the "usual suspects", friends-of-friends, etc... It defin

Only if you actually get enough people in the door.. Plus sometimes invite systems mean you just get the "usual suspects", friends-of-friends, etc... It definitely has value in keeping out the spammers and trolls though, I agree there. I suppose it depends on how you want to handle moderation in the long run.