CoF is the worst example possible of black metal. They didn't just "sell out" like Dimmu, they were never really black metal to begin with, they were always a 100% artificial watered-down mixture of a few metal genres. While CoF is mainstream as far as extreme metal goes, and as is Dimmu, black metal in general is anything but, while it is highly respected among metal fans (at least the ones "metal" enough to be on a metal forum like this one), to the point where death metal & black metal pretty much define the face of metal for extreme metal fans for almost the past 20 years. Even this thread has more than twice as many posts as the death metal one. And yet despite that popularity the average "mainstream" heavy rock fan has not the slightest clue who Emperor or Darkthrone is