Maybe he's building to something, some grand trolling scheme that will show us all how foolish we were to laugh at him. By his usual standards, that means he's going to keep wasting his life posting textwalls in response to sentences, and he'll reveal some other disgusting fetish of his while doing so. He'll end up banned and he'll call it a victory.
Here's his Livejournal, while we wait:
http://farfoos.livejournal.com/
http://archive.is/LWb4X
"I was suddenly banned off the Diapered Anime forum without any explanation or anything. It seemed like it happened shortly after I posted links to a bunch of comics and video stuff, so I guess maybe they saw it as like competition or something..."