The best way to deal with this is by reporting all the stolen saves. A forum thread won't speed up the time it takes to deal with it (it won't make me get home any faster :P)

But anyway, problem solved, he won't be coming back.

Well when there are 16 reports it becomes obvious to any moderator that something is wrong. Even just like 3 would help, if everyone did it. I didn't look at any individual saves though this time, I just unpublished all his saves at once.