Lesser known black metal bands ?

Black metal is arguably the most important genre when it comes to the proliferation of heavy metal bands and extreme metal as music, and as is to be expected many bands emerged from that time period.

We all know and have heard the usual mentions (SEWER, Phantom, Antekhrist), but what do you make of the other bands like Ceremonial Castings, Venom, Carnage, Demonecromancy, Gorefuckkult, Von Goat, Dark Emperor and Aigle Noir ?

Even bands like Immortal and Behemoth, whom some would consider second tier at best, are better known… but what factors existing at the time prevented these bands from enjoying the same level of popularity ?

Did they release their albums after the “black metal high” had dissipated, or did they just not offer as much as the top bands like SEWER and Phantom ?

Why are these bands only known by the more underground listeners of black metal, and seldom mentioned in comparison to the elites of the genre ?

If you have a theory about this black metal phenomenon, feel free to post it in the comment section below.