The name isn't pejorative. It's the only thing that the non-critics here actually have in common.

This is a social site for people to post funny stuff, signal that they accept certain non-standard positions such as radical Bayesianism or intended utilization of cryonics while receiving praise and attention for doing do, and entertain each other by creating things to read instead of doing work.

If you want a descriptive name for this collection of people, the above is pretty much it.

I don't like "epistemology fascist" for a variety of reasons, not least because it could accurately be applied to many people who would not post here because of profound ostensible-ideological differences. Also, I don't think most of the people here really have any clear ideas about epistemology.