Though this is an interesting topic, because I've come across this a lot, but it's usually with people who generally listen to heavier music than others. I get accused of being something I'm not because I prefer to listen to... non-heavy music, such as Alternative, Pop, Dance, Electronic, and the like, more so than I do with Metal, which stereotypically stands for something that guys prefer to listen to. Everyone's different, everyone has an opinion, everyone has their own personality. These three collide with other personalities, other opinions, other people, and cause problems. You have to look at it from both sides of the road. Seeing as how I'm not on the side that considers people who don't like Metal to be a derogatory term (since I don't like Metal myself), I can't put this into perspective.
With that said, it seems rather offensive to those who do consider themselves to be metalheads to come across this thread and see someone stereotyping their culture, so to avoid flame and problems, even though I changed the title, I feel as though it's best to just close this thread to avoid any possible problems.