I'm just middle aged and lost all energy for unproductive discussions. The second another poster posts something genuinely hostile, like "touch grass" kinda shit, I'm just done talking. Also if we're six comments in and the other guy won't even admit to being wrong to the thing he said on comment one, despite me doing twenty minutes of research to prove conclusively that he's wrong, I don't want to waste another second of my life on him.
I gotta have 10% of the "disengage" comments on this site.
I don't get why people say "disengage". Why not just stop responding and ignore the thread?
Without naming names, I've got in arguments with some users who will just keep coming back and posting more replies after you stop responding. Sometimes for days, in one case, weeks.
I also think there's some value in actively signalling that the conversation was actually really sucky and you hated it. Helps steer people in nicer directions, I'd argue.
NGL I'm guilty of this