Rice Eccles, LES, Kyle Field, the Big House, The Coliseum.....that place can get incredibly loud. I wonder if those people you talked too went to a game in which Oregon was playing a patsy. Then everything you said would apply. I went to the Utah vs. Oregon game in 2009 when Utah was ranked and lost by 7 to Oregon. Autzen was deafening. Last year's game Autzen was a little more quiet, but that's because they were supposed to beat Utah and actually kind of struggled a bit in the first half. It was still really loud.