Edit: very interesting that this post is getting downvoted. I didn't even say anything controversial, just that banning people is bad. Exactly the danger we face online, which will eventually get into broader society.
I got banned on a platform for saying a public figure was physically attractive to me. Prior to that, I had engaged in a perfectly factual discussion about certain statistics that were in favor of a particular political position. There is no doubt in my mind that I was flagged for having a political position (to clarify: I didn't actually have the position, I was just posting statistics that supported that position).
I like HN's approach to moderation. You don't ban the person unless they are really unreasonable. You flag the comment, disappear it from the thread and tell them to behave. I also like Gab's approach which is: if it's not illegal and you don't like it, then just block them from your feed.
The wholesale banning of people for single statements that are generally taken out of context is emblematic of cancel culture and it isn't surprising to me that "hacker news" is more nuanced and understands that people are not one statement or one act.