Because their fans are fucking nutters. Next.
Alright, maybe things aren't so bad nowadays. Got to be careful what you wish for though; if you're not controversial and people aren't hating on you, then chances are they'll just stop talking about you altogether. Or worse, folk'll only be interested when you pull some crazy shit like this. Leeds fans; would you rather be in the news for giving some rival supporters a good hiding, or for bringing out a new badge that looks like it was inspired by a bottle of Gaviscon?
Thought so.