Originally posted by Palynka
Of course there's nothing wrong with that. It's not comparable, though.
Autists have a brain disorder that creates problems when interacting socially, especially with people who are unaware of that disorder or how to deal with it. Creating such a voluntarilly controlled environment can be positive if it benefits communication and doesn't have the objective (or merely effect) of prolonged isolation.
Mensa doesn't have the objective of prolonged isolation either. The friend I was talking about earlier went to meetings every few months, and he had a penfriend he had found at Mensa. He may also have been in a SIG at some point. In any case, his Mensa-related activities were a very small part of his social life. How is that isolating?