So, what's needed is a division into an introductory place for anyone to join and learn, and a "graduate-level" place for people with serious ability and commitment to making stuff happen. The latter wouldn't be a public forum, in fact it wouldn't even be a forum at all, even if as part of its activities it has one. It would be an organisation founded for the purpose of promulgating rationality and improving that of its members, not merely talking about it. It would present itself to the world as such, with participation by invitation or by application rather than just by signing in on a web site.

In other words, LessWrong and CFAR.