I tend to like some bands in a spectecularly different way than most of their fanbase. And since the characteristics of a fanbase usually affects how the non-fans perceive a band, I often receive surprised reactions when I reveal my feelings towards them. "Anathema?" they say, "but they make depressing and lame love songs that only unrealistically romantic teenagers like. How could you like them?" Or sometimes they go "You listen to Dredg..." and not-so-silently laugh.
All tongue-in-cheek of course, I don't have cruel friends. But still, this is a thing that happens.