I also question why he wants to return to bitcointalk now, with that specific account (I'm pretty sure he has others, likely still active). He's probably got plans to put it to use in some way, and my guess is that whatever he's got in mind will either lead to shitposts or some variety of shady activity. Not that the ban appeal process is a democratic one, but my vote is to let it stand as is.
There are no need to think all these negative things. The account must have a value for them. May be they want to feel proud that they have a legendary account, may be they want to join a good signature campaign to receive better payment, they may want to start a business, anything that could lead the account to a better one than it used to be.