If you live in a glass house you shouldn't throw stones!
Here is what I know on this topic (some insider info). I'm an ISU alum and fan. However, my daughter is a freshman at U of I. She is roommates with some Hawkeye marching band members (so I had to ask what she knows).
My daughter attended the Miami (Ohio) vs. Iowa game a few weeks ago. She says she was embarrassed how badly the U of I students treated the visiting marching band from Miami of Ohio. they were cursing at them from close range and tossing items at them as they lined up to march (although I am not sure what that was exactly).
Fast forward to the ISU vs Iowa game she says afterward that the complaint was that there was an ISU fan (one fan!) who was yelling at them non stop and that was annoying to them. additionally, some fans had poked holes in their beers and it was running out and onto them. I told her that ISU doesn't allow beer in the stadium....so that doesn't make sense unless it was outside the stadium.
Whiners!