I used to argue online a lot. On one hand I have a hang up about needing to be berry precise in my words and arguing helped me formulate my thoughts on important topics for my own purposes. On the other hand, in the 20+ years I've been using the internet I never once saw anonymous arguing produce a meaningful outcome anywhere, ever. It's less productive than jerking off. Eventually I'd get halfway through a big response, realize what I was doing, and force myself to stop and delete it. It sucks a little to lose your effortpost, but surprisingly the main feeling I'd get was relief. I'd suggest trying that out. If you find yourself engaging with something that bothers you, disengage with it cold turkey and give it a minute to see if you've actually lost anything. That seems obvious, but you probably aren't doing it.