User blog comment:Dodo8/Project "hilite"/@comment-4210063-20130331145240

My wiki has a more simple version

a[href="/wiki/User:{User Name Here}"] {color:{Color Here} !important; font-weight:bold;}

Just paste that in MediaWiki:Wikia.css page and it should work. If you dont believe, go here and check out users that are listed in that.