Why do you immediately change an edit that I made ?? 

I edit very rarely on Wikipedia.  When I do, I try to be correct, brief, and to the point.  Therefore, I take offense at you constantly deleting language I'm modifying on the "list of regional nicknames."

I added this > FIB 
    (U.S.) An acronym for "Fucking Illinois Bastard." This is frequently heard at sporting events between sports teams in Wisconsin and Illinois.

and I modified this > (additions in bold).  Cheesehead 
    (U.S.) A person from Wisconsin, from the many dairy farms and cheese factories there. Also extended to fans of the state's National Football League team, the Green Bay Packers. This term is widely used by people from Illinois, a bordering state and frequent sports rival, although many Wisconsin sports fans embrace this name by donning large triangular blocks of cheese on their head during sporting events.

These are correct and clearly add to the page.  I'm from Wisconsin originally, and again, take offense at why you keep deleting them.  What's up with that?