You don’t have to respond to every comment. Silence is sometimes the most complete answer.

A reply is a decision, not a duty. Answering something hostile gives it standing, extends it, and hands the other person another turn, which is usually what they were after. Leaving it there does the opposite: nothing to quote, nothing to escalate, and anyone reading can see the comment on its own. Some things are most clearly answered by being left alone.

Pick one comment this week you were going to answer and simply do not. No subtweet, no screenshot, no last word to a friend. Watch how quickly it disappears without your attention keeping it alive.