Maybe I'm WAY off base, but I look at 'The Most Toxic Fanbases' list and scratch my head.
Iowa #1??? Yikes, where'd the heck did THAT come from?
I've always viewed Hawkeye fans as your classic, fair weather fans. A decent fanbase when they're winning and 'out the door' when they're not. I'm guessing their ranking has to do with the venom surrounding Kirk's son when he was the OC. But that stuff goes on with every fanbase. How did we feel about Chinander as our DC back in the day?
When I hear the word, TOXIC, I think of pure evil. I think nasty. I think hateful. I think taunting. I think of destructive type of fan behavior. In the NFL, people always point to Eagles fans. In CFB, that's the Miami Hurricanes---and their fans weren't even on the Barstool Sports list.