Single post in Two-Factor Authentication

This seems unlikely, but on the topic of security... Is there any way to add a self ban process, a deletion process, anything to make an account otherwise inaccessible. Often times my accounts that get breached are old accounts I don't even remember using. If I had deleted them, self banned, whatever, they wouldn't have been at risk in the first place. I would really like a way to get rid of my Pokefarm account or at least make it inaccessible so I don't have to risk a password being leaked somehow. Edit: or my PayPal information. My PMs will be there for, y'know, forever. So surely eventually someone could get onto my account and take the information. Other sites have a self ban process, which isn't the same as deletion, but I know that Pokefarm doesn't want to.