Ironically, we can thank Elon Musk for that too.

edit: Gross that you're being downvoted. HN crowd needs a serious look in the mirror.

Bringing back and pinning the word to not derail the discussion of "mental illness", "mental handicap", "slow learner", etc or its use as an offensive?

I think the main issue is that no matter which word/phrase is used, some people will use it as a slur, and changing it so often causes more issues than it solves.