I sometimes post news articles that examine possible problems in society. Some may agree with the author, some may disagree. I often see these posts being downvoted if many disagree with the author.
Why do you downvote the post instead of commenting to express your disagreement?
As far as I understand, the idea is to upvote the post to spur conversation and comment to express your agreement or disagreement. Or did I misunderstand something?
Yeah, this is usually the reason I will downvote a news article. Misinformation needs to be marked somehow, and a negative score is a good way to do that.