User blog comment:DJSponge/Vandalism on Breadwinners Wiki/@comment-1038387-20140812001307

Okay, when I gave my reply, I didn't actually check your wiki... this amount of vandalism is still in the area of revert and block. If people do things you know are wrong, just block them for a week. If they come back, make it a month. If they still don't get the message, make it infinite.

As Emerson said, every wiki gets vandalised. This is a relatively minor case. Whatever your mood is, never show them any sign of frustration, because that means they've won.