It's sad, but it seems like sometimes people get suicidal about their account, and try to get banned at all costs.
It happened a couple years ago with two teenagers on here (same family). Within 6 hours of each other, they were both banned -- it's like they set about to "get it done" and they weren't going to stop until they were banned.
In such a case, what can I do? I'm literally forced to ban some people. It's almost like a substitute for a "delete account" function. Maybe for such people, I should ban them and then re-instate them a month later. They might never come back, but at least it wouldn't look like so many people are banned. It would just be me helping them to leave when they needed so badly to.