I have seen or heard of those piss poor fans who have tweeted repulsive remarks but the kids are in the public eye and know that a few ignorant A$$holes don't represent the majority of us. These kids are tougher than that and have to be able to take those few remarks and be able to dismiss them as the exception rather than the rule. If they can't, then they shouldn't read twitter or boards. The real World is not kind and there are A$$holes everywhere and they will be dealing with those things throughout. It doesn't make it right but in the same token, you can't put them in a bubble. Not sure what else to say but I think a majority of them have a thicker skin than what some think and if they don't they need to develop it for their own sake!
The parents of the student athletes I sit around feel quite the opposite and although their hair may get bristled with an occasional fan comment, they know this is not isolated to Nebraska. As for the types of comments you refer too, (getting better at blocking or better shape) listen to the radio and those types of comments are always on there because people are trying to figure out if our conditioning program has faltered over the years and if the teachings they are getting from coaches is preparing them to be the best they can be. This is also why you are hearing on the radio that people are wondering if live full speed practices a couple of days during the prep week would better prepare the kids for game time rather than the (No Contact or light contact prep)? Some feel that this is why we have so many turnovers?
Again; it doesn't make it right but this is not isolated to Nebraska!