Board Thread:Support Requests - Getting Technical/@comment-6042880-20140226135734

I'm on a wiki and I was thinking of using the username template to let users know that they need to meet the deadline before its too late, just a neat little trick I know that I would like to use. However, when I tried the original template it didn't work, so could someone give me the code or explain to me how I could do it in a comment? Thanks! 