On the other hand, downvoting isn't really supposed to reflect dislike or disagreement, but rather a comment that is rude, lacks substance or, is otherwise agai

On the other hand, downvoting isn't really supposed to reflect dislike or disagreement, but rather a comment that is rude, lacks substance or, is otherwise against the guidelines. Unfortunately this rule seems to be pretty universally ignored on HN these days. I'll generally re-upvote any reasonable post that I see has been downvoted simply due to expressing a contentious opinion, even if I also happen to disagree.