His edits consisted of POV and personal attacks. Why wait for him to do even more damage?
These are the contributions of the user in question:
http://en.wikipedia.org/wiki/Special:Contributions/Amalekite
Though the person clearly has issues with you, Jay, I see nothing which I would call a personal attack. He's certainly pushed a particular POV but that's not grounds for an immediate permanent ban. I didn't see anyone rushing to ban User:Rmstallman. At least User:Amalekite refrained from editing his own entry.
Regards, Haukur