I actually disagree. I think downvotes are very useful for when someone posts the wrong kind of content to a niche community without it necessarily breaking the rules. a good example would be reddit's r/bonehurtingjuice. a core element of a bhj is that the comic is unedited except for the text, so if someone posts a comic with an edited last panel that shows an extra character, it would make sense to downvote that post to indicate that it doesn't fit the sub well, even if the resulting comic was still funny/good.

idk maybe that's toxic, but I think it's a better solution than outright deleting content like that when the content might still have value