Board Thread:Support Requests - Designing Your Wikia/@comment-27464768-20151129083733

So recently I've been getting very annoyed with a certain user from a wiki I moderate at, he's very Immature and another user told me about the ignore.js script but I seem to be having problems adding it. If anyone can help me with those two problem I'd really appreciate it. 
 * Where do I post the script?
 * Error keeps popping up