First it was Lieplodorons or something like that and his wierd fanfictions (by the way, he seems gone. Did you ban him?) and now it's Mario Richardson turning lots of characters into villain and Jack3109 and the Bron and Keith Sutherland thing. We REALLY need to patrol this wiki.
Update-----
I'm not sure if Mario Richardson and Jack3109 are trolls or if they are just a bit annoying. Leiplodorons was more troll like, though I'm thinking even he wasn't meaning to troll per se (he just was being really annoying with the fanfic thing and wouldn't stop, at least not till lately, as he's disappeared, even though told off repeatedly.)
On the flip side, I've been on the other side too, where I have been the one upsetting everyone at various forums and was too convinced that I was right and they were wrong. (On some issues, I think I was, but the way I handled it was, looking back, the wrong way to do so, and I became rather trollish or at least annoying.)
Right now, I feel like Ducky with "No, Chomper, you will not eat Petrie! Oh no, no, no. I said 'No!' Just like my Mom."