The commenting guidelines state: Be kind. Don't be snarky. [...] Don't sneer. Regardless, I will indulge your curiosity.
1) There are certainly other terms in use on WSB that one could take offense to. I personally find this one to be particularly problematic. (The fact that I am myself autistic probably plays a big role in this ;)) 2) I have posted many comments here on HN, and as far as I know this one and the one you replied to are the only ones I've posted on the topic of slurs. I fail to see why I should be banned over this discussion.