User blog comment:ForestFairy/How to Take the Fun Out of Trolling/@comment-25499806-20150604230540/@comment-24155515-20150604232930

You could block them, possibly report them to Wikia for a global block or a block of their IP or range. If it's really bad and those aren't feasible solutions and you have solid proof of it being sustained, hard to deal with trolling to show staff, it's possible (but somewhat of a last resort) to ask them for an extension that lets you make custom filters for edits to warn or disallow certain types of edit (but it requires at least basic knowledge of regex :P). Such a filter could allow you to block certain words or strings of text from being saved when they're in an edit (though I wouldn't put a big chunk of any text, especially a copyrighted work).