^^^That.
Tolkien was a genius. If something is awesome and it so happens to be liked by many, doesnt mean its necessarily a case of group thinking. What would you do if your favorite band became incredibly popular and liked by millions? Would you call yourself a "group thinker"? I think not
wow, i thought i knew a lot about the genre, but half of these bands ive never heard of. good shit. But where is belzebong, bongzilla, kyuss, electric wizard, ufomammut, but most of all... Where is SLEEP?