Let's see...another tripfag who thought being friendly and ignoring the trolls would bring them peace...Pygmalion.
It got to the point where every time they made a post, five or six Anons would come in and create a sphere of /b/ around them, dedicating their time and energy to making their life on /jp/ so miserable that they left, predictably enough.
Ponpo-kun seems to be masochistic, a lot like ZUN. I don't know if Ponpo genuinely believes ignoring trolls here would make them go away, but apparently Ponpo didn't fucking learn from the first few times.
Anons here are very, very vicious even compared to the worst boards on 4chan. If they do not like you, they will go out of their way to cause so much rampant destruction wherever you post that the administration eventually may have no choice but to ban you. They will engineer bots to follow you around, spam your threads, report and sage for no good reason at all, and so on and so forth. They are the most LEGION-like of Anons, next to /b/.
My abrasive, aggressive behavior deters them, however. I don't enjoy having to act like a fucking asshole all the time, but it seems to be necessary.