It's not just BYU fans who do....i was talking on the lines of us....as members of the church who do. It just so happens that BYU and members of the church are pretty much the same (for the most part). Coming from a Utah fan it comes off that byu fans tend to pull that card a lot when it doesn't really apply to the majority of us Utah fans. Just giving a different perspective for you Y fans.
I get your point though....I should have been clearer. But if you think about it....any utah school doesn't hold a candle stick to the majority of D-1 schools as far as party/drinking is concerned....in my opinion....especially since I have lived the majority of my life outside of Utah.