Eh, I tend to think it can be worthwhile to firmly rebutt a troll’s initial toxic insinuations as soon as they make them. It leaves other readers of the thread in no doubt as to why these insinuations are bad, and that these boards share a widespread consensus that the insinuations are bad.
If the troll then just keeps popping back up in the same thread with the same argument begging you to whack them some more, then sure, there’s a case to be made for no longer feeding them.
But sometimes the troll appears to be just firing an initial ranging shot at a venture, and doesn’t follow it up if they get pushback. Which is what seems to have happened with the same poster’s thinly veiled transphobic whining in this post.
Feeding a troll a well-earned shit sandwich that causes them to shut up and leave the thread is a response I’m okay with. When and if it happens to work, of course.