What should I use it for?
In case of posts - should I downvote things that I don’t agree with? Or things that I don’t want to see in my feed (posts with low amount of votes fell more to the bottom)? Or things that I consider harmful/stupid/younameit?
In case of comments - should I downvote something that I don’t agree with? When should I use this button in case of comments. Or maybe I should not - cause what’s the point, actually?
That’s great, and I disagree with you. I find that a downvote button, even if it’s not frequently used, increases my engagement with a comment section. I’ve consistently preferred those sites that have both positive and negative voting. If you don’t, that’s cool too, but I think you’re wrong :)