HN is on the more tolerable side of social for me. I kicked Instagram years ago, never had Facebook, hate the hustle mentality of LinkedIn, and deleted my Reddit account due to the constant bickering and flame wars.
I find the discourse on HN to be (usually) thought-provoking and largely respectful.
Same here - HN is nice enough as long as you're willing to just not react to people who vehemently disagree with you about something.
As in: knock yourself out, I don't need to get into internet fights about why I think your opinion is ridiculous/oversimplified/ill-informed. If I get a whiff that the person is not going to be reacting productively I just don't reply.
I find the discourse on HN to be (usually) thought-provoking and largely respectful.