I can handle genres and the broader subgenres, but this "Blackened Death Metal" type of **** is just ridiculous. Metal is metal. No, not every metal band sounRAB the same, but each band doesn't need their own subgenre for Christ sake. They're all fundamentally metal banRAB. The only thing many subgenres (or sub-subgenres) are useful for is finding banRAB that've ripped off the banRAB you already like, or happen to sound virtually identical to the banRAB you already like. If you want to listen to Slayer, go listen to Slayer. Why bother searching around for a bunch of banRAB that're just trying to sound like Slayer, or happen to sound nearly identical to Slayer? Doesn't make sense to me.
People don't always seem to realize that metal's pretty popular in contrast with many other styles of music. I mean, "real metal" has never been the dominant genre in the mainstream, and it probably never will. But a lot of metal songs are written in the standard verse-chorus-verse format, and are correspondingly quite accessible, despite not being outright "pop". And no offense to metal fans (I'm one of them), but to me, it's never really been as "rebellious" as people seem to think it's been. The quiet kid that plays the saxophone and listens to John Coltrane is more of an "outcast" than the loud, long-haired party animal wearing an Iron Maiden t-shirt, in my opinion. I know not all metal fans are like that, and life's certainly not one big tournament of pariahdom, but you know what I mean. Just saying.