another point, i don't know many metalheads who've really explored black metal and come out liking none of it. it's almost impossible actually because some bm bands are very very closely related to various traditional metal bands and the like. same applies to any sub-genre - if you love something in one, you're likely love something in all the others, because they all revolve to some extent around the same spiritual core. people tend to dislike/dismiss entire sub-genres of a genre they love based on superficial reasons, and by superficial i mean they're reasons that are quickly rendered false by accumulated experience.