Indeed. I recently found out Michael O'Church was banned from HN because he called her the c word because of the anti-worker policies she implemented at Yahoo. (somewhat indirectly, and I'm hesitant to use it myself for fear of being banned).
I didn't downvote you but I think you see the issue with your statement yourself. HN does not censor words.
While name calling is completely childish it is most certainly tolerated by other users on HN (Do a search for "is a [insert derogatory word]" site:news.ycombinator.com. Steve Jobs is called an asshole in every HN thread.
For sure ochurch stepped on toes here but one thing he was passionate about is improving the profession of software development and in general the tech industry and he saw MMs actions really harming the profession and the industry. I obviously think HN is worse off without his commentary.