Thread:Numbuh 404/@comment-961279-20150920153023/@comment-961279-20150924135150

That can be tricky since you've got the copyright of the particular piece of fan art you did and the overall copyright of the character design that's owned by the company. But for this person, what you can do is keep blocking them. I've seen cases where situations that started out with Wikia saying it's not something that really qualifies for a block changing and growing over time to where it does.

There's one user I can think of where I spotted had a new sockpuppet account and when I went to check its edits, it was already globally blocked. I wasn't able to determine if anyone had reported that account, so it seemed like it had progressed to "block on sight".

People like this typically don't listen and don't change their behavior, so with enough blocks on enough wikis, Fredericko will likely be put in the "this is no longer a nuisance and is officially vandalism" group.