I mean, yeah, trolling is a pretty strong motivation? This particular poster isn't even very subtle about it, but it shows that in the end, we are pretty helpless when it comes to that.
I think the strategy could be as follows: a) make troll threads with insane, awful claims, b) screenshot them and claim "everyone in the incel community is an a-hole because they associate with them" and thus c) try to harm all incels by removing the only place they have.
The main issue is that it's hard for any incel forum to ban people since this is really the only place many of us have, but that just invites trolls. I think the problem is not solveable.