https://news.ycombinator.com/item?id=17807056

https://news.ycombinator.com/item?id=17767666

https://news.ycombinator.com/item?id=17486112

But the main issue is using HN primarily for ideological or political battle. That's directly against the spirit of this site, and destroys it more insidiously than incivility does.

Positive vote scores, alas, aren't an indicator of whether comments are good for HN or not. The most indignant and ideological comments routinely get upvoted. That's one reason they're insidious.