Well, if there are other people who feel that way, they're free to meet up to share that interest.
My serious answer: I'm not sure there's a well-defined, cumulative, discipline-like body of knowledge in the LessWrong memeplex. I don't know how it could be presented to an intelligent outsider who's never heard of it. I don't know whether it could be presented in a way that makes us look good.
My not-so-serious answer: a lot of the time I just don't care any more.
It sounds to me like you might be in some kind of depression or low-enthusiasm state. I don't hear a coherent critique in these comments, so much as a general sense of "boo 'rationality'/LW".
Contrast:
Are you not comfortable with that happening at all, or not comfortable with being involved in one?
I'm not comfortable with it existing. I think it's not useful.
and
People with a common interest meeting up seems natural enough.
Well, if there are other people who feel that way, they're free to meet up to share that interest
This feels inco...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
If continuing the discussion becomes impractical, that means you win at open threads; a celebratory top-level post on the topic is traditional.