Penn State violated zero NCAA regulations. Therefore, any NCAA sanctions levied against Penn State were completely bogus.
There was a predictable and appropriate public outcry for justice, but just putting the actual bad guy (Sandusky) in jail wasn't enough. People wanted to have others to blame, because it's difficult to accept that someone like Sandusky could pull the wool over everyone's eyes and get away with it. The reality is that Paterno did exactly what he should have. In fact, the NCAA actually published a guidance about how to handle allegation of potential abuse, and it directed coaches to report to their superiors just like Paterno did. There were Penn State administrative folks who were charged and found or plead guilty of child endangerment. There was no cover up, but people needed more people to be punished.
Actually, there were people who were in a position to protect these children and/or stop Sandusky, but they failed. These people were beaurocrats and politicians in PA. Unfortunately, this is too political and there are people too important or connected to be subject to any inquiry or official investigation.
While it is sad that your fan base would use the evil done by one man to paint an entire university, alumni, and fans, it isn't just Iowa fans who are ill informed or just choose to knowingly spew venomous lies.