I found that things became much more pleasant on here when I blocked hexbear. I recently blocked lemmy.ml as well, but I may reverse that if I find that I’m missing too much good content.
I’m open to other ideas on how to mostly avoid people who love conflict or argue in bad faith.
I never block anyone or any instance. I simply ignore them. I also use the subscribed feed, so what most of the people say about hexbear, lemmygrad, etc. content filling their feed also does not affect me.