Using ableist language as insults is always bad, even if the words seem innocuous. Some may reference the “euphemism treadmill” to try to justify their behavior, but it’s crucial to understand that the treadmill is merely a linguistic observation. It does not exist to normalize ableist behavior.
what is the euphemism treadmill for those who dont want to google
Tone policing won’t fix that some people predictably make fucking terrible decisions, for no sensible reason, and we need to deal with that and warn others about it.
Which is why the real solution is for every forum to fuck off with enforced civility and let people call each other assholes. Some of them will deserve it. Moderation exists primarily to make that call. You’re not just a filter for no-no words. You’re a human being and you’re expected to have an opinion.