User blog comment:Dopp/New Profile Design Now Live Across All Wikis/@comment-3441771-20110823053445/@comment-3388044-20110823084730

Great eye Starfleet! I sent this on to Staff a few days ago. I was told that it is all about the URL. There are two conditions:
 *  http:// .wikia.com/index.php?title=Special:Contributions&target=  shows their contribs, but with your masthead


 *  http:// .wikia.com/wiki/Special:Contributions/  shows their contribs and their masthead.

A bug report was passed on to the techies.