Saw the "offenders" (if that's even the best term) for the bigger picture. I'm not LDS and would maybe classify as having slightly above average understanding of the faith compared to non members. Yet I do understand what sacred means. So when those who don't understand mock it.... It's simply because they don't understand and it's not personal. Like you said, most UA fans you know are great. I think that can be said about the majority of sports fans in general.

I know some BYU fans I wish couldn't speak or access the Internet. It's all relative