You're right to some extent... which is why I said I can't think of any
practical solution. I disagree in that I think the biggest bar is not the judgmental nature of it (we're all being judged anyway) but the fact that it would be a ton of work to categorize comments along those rules if it were not automated.
I just feel that part of the reason people descend to name-calling is because there's no feedback before they hit post. Nobody says "That's not a very good reply." Afterward, it takes someone motivated enough to call it out. In the meantime people see it and think "Lots of name calling on here." I think it's good that downvoted comments are still visible rather than removed so that people learn what is considered unacceptable.