The point is that if a user says "hey I have NPD and the use of narcissism as an insult by you is insulting to me and other NPD people" instead of looking for possible angles to attack the user from and instantly calling them a wrecker, just do some self crit, listen to what they have to say, and try not to use it in words in a way that makes them feel unwelcome.

If casual ableism and ableist insults are something the site as a whole wants to discuss, we can do that. I'm sure a lot of people are willing to die on the hill of not doing self-crit for the sake of the ND community, but we could do that.

In the meantime, just don't instantly assume bad faith when talking to users, and if they are talking about ND issues, be willing to listen.