Downvotes = “I disagree” or “this is bad and you should feel bad”?
I think I’ve settled on the latter. Disagreement is maybe best communicated by the absence of an upvote? And downvotes work best when they signal something that is just off base, and while not reportable, is not appreciated at a broad cultural level.
Does the thought of the person, that you plan to downvote, crying themselves to sleep make you happy? Then you should downvote them. I think that's what they wanted to say.