I agree, they're generally that way. I enjoyed the conversation, but I let it lapse because the juice wasn't worth the squeeze.

I joined because I was insecure at the time. Oddly, joining helped me be less arrogant, because I didn't have anything to prove to myself. So Mensa did that, at least.

I think 140 is about the sweet spot; I can do whatever I choose to apply myself to, and much higher it becomes a lot harder to deal with society.