OP needs to change his posting style and definitely needs to improve the quality. He should avoid posting using AI - it's really bad for someone who wants to grow in this forum. Many users use AI to create posts - but they don't realize the consequences. I hope OP can fix his mistakes and improve the quality of himself and his posts - but if his motivation for being active on the forum is to make money, then it's very possible to see the account stop posting until the time limit has passed.
I think he knew what he was doing, only that he thought he would just go away with it without getting noticed. In one other report, there is a connection of his account to another one that happens to also be an AI spammer (habit?)
Anyway, let him try appealing through the usual process that theymos suggested and see if the decision to ban his signatures can be reversed.