I learned that a lot of people here don't seem to know the difference between fanatical band zealots and fans of certain bands.
Yes, there are certain ones that stick out because they have pretty large followings to begin with (Such as Led Zeppelin or Metallica or the like), but it's less a matter of them being a fan of that band and more a matter of them just being twats who happen to also like that band. If Tool didn't exist, those guys would be idiotic Nine Inch Nails fanatics. if Metallica didn't exist, those guys would endlessly shit on everything that wasn't Megadeth.
Juggalos, in my experience, while utterly lame and pretty effectively wastes of life, are amonsgst the most tolerant and forgiving of music fans. They won't understand that you don't like ICP, but every time I've ever said "Man, ICP sucks" to one of them, the immediate response was "Yeah, but who gives a fuck?" Most ICP fans know that ICP are talentless, they're just not very picky. I actually did a brief study on juggalos when I lived with a girl who hung out with a ton of them a few years ago.