I have taken another, stornger coarse of action. I do not leave so easily. I think the best plan of action would be to contact Wikia directly(you can find a link to a Wikia main site page, then get a link to a form from there) and simply tell them to check the One Piece wiki, check the ban log, only 4 people have been banned, all unfairly. I requested we are all unbanned, sicne the bans were for the most outrageous reasons, 3 of us for adding information(hello, it's a Wiki, that's the point) and Angel for the Dragon Ball Z thing.
Now don't get me wrong, I never watched Dragon Ball Z, so I am completely neutral there. But I could understand the feeling of, say, being kicked off a Bleach wiki for liking One Piece, or some admin on a Naruto wiki says "omg you like/dislike that series" and banned, right there. THis guy obviously has no idea who he just messed with. I myself am generally a force to be reckoned with.
Instead of moving on I recommend all of us simply telling Wikia to remove him right now, and replace someone more responsible, like you Angel, into the webmaster/main admin position.
Of all the reasons, adding info, TO A WIKI and for personally disliking Dragon Ball Z, what an idiot. I think the 2 main reasons we can get him "dethroned" is the reasons giving for the ban(I am partially prepared for the responce of "I'm sure he had better reasons, but just put those in there") the fact that the reasons are the most idiots excuses I've ever heard(I mean this literally, dumbest I've ever heard) but even then the fact that he's trying to run it as his own personal One Piece website, that'll probably be enough for Wikia to step in and say it's a wiki, he needs to let there be a community.
If they say anything about there being a lack of members, at this point it'll be best to blame him for scaring everyone interested away.
This guy is going to realize quick that he hasn't seen the end of us. We'll get Wikia on our side. I'm just hoping we don't get the customer service person that has an optomistic excuse for everything "maybe he has a reason" "Noone would give that responce for a real infinite ban" "That's not right, I'm sure the guy will fix it" or other equally inhelpful responces. ANyways I sent the guy an email. not reply from either him or Wikia, so I'm just gonig to keep everyone updated.
At the very worst we can always retrieve the source code from Wikia and re-upload all the photos.
Problem is we can't create a 2nd One Piece wiki since there "already is one" and we'll jsut get a link to the old one. I tried to create the OP wiki right before I made my account there, I only found it because it linked to it in the email.