The problem with the bulk of offline and online behavior policing is that we are obsessed with signifiers and ignore the signified, because you can always say actually I signified something else and it's ultimately useless because the signs just change while the signified doesn't
it can ultimately have a small positive effect like decoupling ableist language from other negative signified, for example, but the vast bulk of the negative signified remains unblemished.
(online 'rational' debaters, religious figures, etc abuse this to signify the most abhorrent things with acceptable symbols, and it works because we're all rhetorical newbies, as a species.)
what "never again" means is "never use the 1940s symbols to symbolize genocide, use some new ones"
nothing you say is allowed to be called racist unless you literally say the n word symbol etc.

@unormal so much this

So many jerks get around rules against slurs by saying everything in bland "non-confrontational" language while either implying or outright stating horribly ableist bigoted etc crap. And when angrily called out on moderators all too often go after the angry party instead of the bigots.