User blog comment:Gp75motorsports/Wikia Staff - Please STOP implementing changes without communities' consensus./@comment-1269835-20150429235830/@comment-452-20150430005044

Note the by other users section of that paragraph.

You can do it for yourself.

Anyone who says the "fixed global nav with CSS" are referring to altering it in their personal CSS only. I'm one of the users who has done so: User:452/global.css