Speculative: don’t necessarily force, but allow people to tag upvotes and downvotes, suggesting tags which are globally common or have already been used on this comment. (Suggested downvote tags: “incomprehensible”, “untrue”, “rude”, “spam”, “misread the parent comment”.) Make the tags visible on each comment. Possibly, for each user, publish the list of most common tags they’ve received.
Speculative: don’t necessarily force, but allow people to tag upvotes and downvotes, suggesting tags which are globally common or have already been used on this comment. (Suggested downvote tags: “incomprehensible”, “untrue”, “rude”, “spam”, “misread the parent comment”.) Make the tags visible on each comment. Possibly, for each user, publish the list of most common tags they’ve received.