A friend of mine posted a question as guest recently and got a polite, helpful reply. I emailed them with this:

=====

I see you've been posting at Mudcat!   What happens as a rule is that you get 90% of sensible answers, 9% completely irrelevant and 1% abuse. Just be prepared for it if it turns up and its best totally ignored.

=====

I regret feeling that it is necessary to warn them about written abuse but it seems to be in line with what whoever-has-left has experienced.

Having said that, the only additional censorship I want at this site is self-censorship. Occasionally, I need more of it myself.