I also don’t consider HN to be in the same category as Twitter and Facebook. Another reason for this, on top of those you mention, is because identity is very w

I also don’t consider HN to be in the same category as Twitter and Facebook. Another reason for this, on top of those you mention, is because identity is very weak here. I don’t have any persistent relationship with any HN commenters - I have no idea who you are or if I’ve replied to you before! That cuts out a lot of social dynamics that breed long-term feuding behaviour on other platforms.