It's not that easy to start an illegal multi-account. He'd have to start it as a legal multi-account, then fess up that it was him running both. And even then it would be a 30-day ban, and he could request reinstatement if he ever wanted to come back. Or he'd have to come back and do it again in 30 days.
But regardless of how you feel right now, Lorin, why should the game prevent you from changing your mind later? If you're so convinced you don't want to come back, then simply don't.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."