I would first like to start off by saying that I'm new here, and out of need for philosophical stimulation (and boredom) I joined this forum.
Black Metal is a contradiction because the aesthetics associated with "Black" are the complete opposite of the aesthetics of "Metal." Just as Anton Laveyan Satanism is the opposite of Bible Belting Christianity, and just as the Right wing agenda is the opposite of Left wing's agenda. Black and Metal by themselves have completely different agendas that actually oppose each other.
Part of the problem here is that not everyone agrees on the meanings of the two terms. They all fail to realize that it's not the sound of the music by it's self, but the abstract qualities we associate it with, it is our subjective interpretation. It doesn't matter if a band is heavy, hard, fast, and/or raw, that could apply to other genres of music. Therefore, you can not define a certain genre of music by it's physical sound alone, because that isn't even a fraction of the whole picture. This is why people don't agree, because they all have their own seperate ideas of the same terms, and this causes confusion and lose of identity in music and all art. We need more labels and terms, and more understanding of what's what. Boundaries in music (and all other art forms) would actually promote creativity, if you don't fit in one genre, then you can move to another or make your own.
So, I think "Black" refers to dark macabre aesthetics, the occult, horror, death, sadistic, spiritual, and darkness that's just beyond words...
That's part of the problem, some of it for me is just beyond words. However, "Metal" to me is more mundane, "folky", and makes me think of metal head idiots throwing up the horns in drunken stupidity.
Now, here is where many of you may hate me, I think many bands that are typically depicted as the epitome of black metal are complete shit, and not very black at all. Groups like Emperor (I only like Wrath of the tyrant), Darkthrone, "Viking era Bathory", Mayhem, Deathspell Omega, Krieg, Immortal (after first album), Nargaroth, Gorgoroth, Blasphemy, Crapathian Forest, Venom, all NSBM, French BM, most of Burzum even, none of it is very Black when you really think about it. But maybe it really is "Black Metal," since black metal is a contradiction, and these bands are seriously confused.
This is why black metal is a failure... However, the death of Black Metal would actually be a good thing, it could help promote a much darker, more occult, and more serious form of music to unify as a completely seperate genre with it's own regulated boundaries, but only as long as people recognize this.
Or, most likely, people will continue failing to understand the whole point in even having true aesthetics. It's not like they are worthy of understanding such a concept.