Death to any comment that’s anything only communicating “I enjoyed this”.
“lol” “This made me laugh so much that I xyz!!” “This is perfect!” All useless. Upvote and move on.
If I couple copy paste a comment to any random parent comment and it still makes some sense, it’s a bad comment.
Or someone who doesn’t like generic comments. You could paste half those on any comment chain. They’re the equivalent of an upvote but the commenters felt the need to say it instead. Good downvotes.