I won't post links to examples here because, again, that is probably not within the site guidelines. But I'm happy to supply on request.
HN does have such policy.
The issue is some users think anything right of Trotsky is "racist", "White supremacy culture", etc. It's a term that has almost lost all practical meaning in $CURRENT_YEAR.
>But I'm happy to supply on request.
I'd love to see some examples, because practically every instance I've seen of racism in the comments section has been [flagged] quickly. I flag it everytime I come across it, and I rarely come across it these days.