Apparently.
When I went to the Twiztid concert, I didn't hear ONE "I-C-P" chant, but they were chanting Twiztid, for obvious reasons.
I admit, I think it's fucking retarded to do the whole Faygo thing at anythign other than an ICP concert, because, fuck, that's THEIR thing. Twiztid didn't even TOUCH a faygo at the concert. Also, chanting I-C-P at anything other than an ICP concert is fucking retarded.
Some of the Juggalos I've talked to are retards, but that could be with any group of people, as I'm sure someone's said before, and anyone could point out examples.