What you are suggesting is that I have to behave politically correct, a form of effective self-censorship, because of the outcome while completely ignoring intellectual curiosity.
This is interesting because in the HN guildelines you cited, it specifically says:
"Please don't use Hacker News primarily for political or ideological battle. This destroys intellectual curiosity, and we ban accounts that do it."
If you dive into "SJW" and "the communist movement" and whatnot, you're doing ideological battle, and that's what we don't want here—not because we could care less about political correctness, but because it's predictable and tedious. And it consistently leads to worse. There's no intellectual curiosity in that, so please don't post any more of it here.
