Board Thread:General Discussion/@comment-4099206-20140213144425/@comment-1038387-20140213150106

Yep. Block. I have no problems, whatsoever, to block people.

Technically, you can even block them for ignoring their message wall (though that might well be they don't know what the message wall is).

Give it a three day or one week block at first, and give him a message to explain why he's blocked, and should he do it again, the block is longer. Once the block expires, drop him a line to remind him he's on parole, and keep an eye on the editor's contributions. If he does it again without explaining himself, a month block ought to do it.