Just reading his little announcement to you that he was back.
Trying to decipher his poor communication skills I'm finding his story about being "allowed" back a little hard to swallow. If that was the case why didn't they reinstate his old user-id? It wouldn't make sense for Wikia to allow him to come back but not give him access to his old account. They let him "come back" if he "sacrificed" his old account? If to be believed, I would assume the "logic" here would be that he was allowed to come back as long as he came back under a different identity if he behaved himself? If by that logic why did he then sign up for a very similar named account and use the same avatar?
Also I wouldn't entirely trust what this user says. He has a tendency of blowing things out of proportions and embellish things or just downright make them up.
Case in point: One thing I noticed when he cropped back up was he set up his own Wikia sites (again) about fan-fiction battles or some such nonsense. Then he banned me from them accusing me of all the things I banned him for on the Marvel Wikia. (which I can tell you, wounded my poor sensitive heart for sure!) I think those sites are gone (they aren't linked to his profile anymore, which suggests they were deleted by Wikia) just like they were last time.
Anyway, up to you guys what to do about him. I banned him from the Marvel Wikia outright when I found out he was back under a new user-ID because he was such a pest last time and he contributes literally nothing to the site. He was just using the Wikia like a message board for his poorly worded ramblings about omnipotent characters. All the drama he usually causes I didn't think he was worth the time unless Wikia legitimately restored his old account.