I think that in HN there is a high quality in the comments and a low quality in the voting of publications, because in the first, people refrain from commenting

I think that in HN there is a high quality in the comments and a low quality in the voting of publications, because in the first, people refrain from commenting stupid things because it gets them harsh criticism, but in the second, people can vote for stupid (or low quality) publications because they will not be criticized. And most of HN (and of social media, and the world in general) is dominated by dumb people.