No, censorship is not a serious (or even real) problem.

The moderation here is very light-handed, with a few random exceptions when mprep has been drinking or whatever.

The intentional conflation of censorship and moderation was being used as a red herring and wedge issue in the Gavinistas' social engineering attack on Bitcoin's public forums and governance structures.

It's not fun watching super-smarty-pants world class crypto guys (Backamoto, Gmax, Cryddit) fall hook, line, and sinker for the censorship martyrs' cries of "help help I'm being repressed!"

That tactic was crafted to appeal to cypherpunk "information wants to be free" sentiments, and it worked better than anything else XT or Klassic did.   

Kudos to Thermos for sticking to his guns and not letting the bastards get him down!