I left a comment on this answer in which I made a reference to a word that many people find offensive (although I didn’t use or even mention the word itself). I referenced the word because it was an example of the type of word that the question was asking about: insults ending in -er.
Another user took me to task, scolding me for referencing an offensive word.
I think this is absurd. Does this user really expect us to pretend offensive words don’t exist? Is that really a reasonable way forward? This is what I imagine the policy someone who was offended by my comment might propose:
Discussion of words that people might find offensive is strictly forbidden. Not only are you not allowed to use or mention such words, but you may not even allude to their existence.
Is there anyone who actually supports such a policy?