I would phrase it as resentment, not hatred and I have a firm belief that our success from 2007-2010, along with sone comments by the only two within the school who had the ability to speak for the football program (Edsall & Hathaway) bothered quite a few schools and their fan bases.
Many saw us as a school that really didn't give a s#!t about football until we were guaranteed a spot in a then New Years day bowl conference. Edsall and Hathaway viewed bragging about having access to one of the major bowls (which many schools that had been playing competitive football for many decades did not have) as a good thing.
That we won our conference (while losing to the two worst teams in the conference, and a non-conference game to a mediocre at best Temple squad) irritated enough people that within our conference other schools were publicly lobbying to change the rules so that West Virginia could go instead of us, the committes conspired to send us to the worst possible destination for us and the narrative from shortly before that game until years afterward was that we did not belong.
We were painted as an entitled school/fan base that needed the guarantee of a reward in order to be willing to provide an effort. Sadly, beginning with Hathaway's decisions shortly after Edsall left, we've done very little to change the opinions of anyone on the outside.