[TheCoelacanth]

I'm thinking about more typical clubs and interest groups. In a chess club, you can talk about chess without worrying about whether the person is interested in chess. In an underwater basket weaving club, you can talk about underwater basket weaving without worrying about whether the person is interested in underwater basket weaving.

[pseudalopex]

Social clubs aren't rare. Most people like to discuss current events. And few turn down opportunities to talk about themselves.