I've often wondered that myself, I am speaking more generally, obviously. I suspect most coaches beg their players to never read fan boards, try not to listen to pundits, stay away from all that stuff. I am relatively sure that the temptation often gets to the kids despite the warning. I appreciate this thread, b/c I don't know - possibly someone does.
Certainly this year our team had plenty of pressure through the media and fans for losing games in which they had big leads, not stacking up to teams past. That can be motivating, but as said above, it can plant doubt. I am guessing most coaches at this level don't post that and go our of their way to keep kids away from it. Our board - and it seems your board, too - never gets personal with college athletes. It's one thing to comment on grown men who get paid to put themselves our there, quite different and unfair to do so for a young student, not paid, representing their school.
I know that if I were a coach I'd never post it or use it. I'd rather address any issues coach to player.
Thoughts?