On the Oregonian Blog, sounds about right, but holy cow is he naive. (the former player)
I love love love going to stadiums and watch games, and it doesn't just happen at Oregon. I have heard it at Texans games, Cowboys games, Saints games, OK State games, Texas and Texas A&M *GASP!* games, Houston Dynamo games, Astros games, Club America (Mexico City team for you non soccer folks) games, Mexico and USA national team games, and even in Europe at the Paris St. Germain, Ajax, AC Milan and Liverpool games I attended to. Everyone has an opinion and some are very vocal (and vulgar) about it.
I normally don't get flustered by it like the player in the letter, but I brought my 9 year old to the Auburn - Texas A&M game and the Auburn fan (a woman) who actually went to Texas, dropped many expletives including "F***ing kill Johnny Football!", other Aggies around me were about to jump her because I had my daughter with me. She insisted on dropping F and S bombs, but she was saved when (unbeknownst to her) one of the Auburn guys she was with apologized for her to me. We (Aggies season ticket holders) were still talking about her at the Vandy game. That was the closest I may have felt to taking action. But my daughter and I know that this behavior is expected at stadiums and we just shake our heads and continue watching the magicians on the field go to work.
With that, I am very surprised that this former player was not aware of it. It is even portrayed in movies and TV. Reading it almost felt like he just realized and is announcing that politicians lie and break promises, and is shocked.