Board Thread:Support Requests - Community Management/@comment-25328018-20140922131542/@comment-25258875-20140922132847

If anonymous users are making bad edits on an article, you should protect it by going to the page, click the arrow beside "Edit", and pick "protect" from the dropdown menu. Then pick "Block new and unregistered users" for a certain amount of time.

Although, I would recommend for you to try to contact the user who is ruining your pages first.