RIP to the man who gave me my first list of metal bands to check out when I was like 13 and figured out all the songs he snuck into Doom. Dehumanizer Sabbath, S.O.D., Slayer, even Devil Doll if you can believe it. My favorite of his originals is probably Doom e1m8
Hardcore is experiencing the same flow every other genre has experienced since the inception of heavy music:
starts in the underground
blows up in popularity
lame ass people get a hold of it
those people eventually leave
reforges in the underground.
Lather rinse repeat