De Mysteriis Dom Sathanas and Transilvanian Hunger are genre defining classics.
If you don't like them, you don't like black metal. Now don't get me wrong, DMDS isn't my favorite black metal album either, but it is certainly a defintion of the genre.
More of my completely meaningless elitist statements for consideration:
-Emperor stopped being black metal on IX, debatable at Anthems, but I'll reserve the latter argument for supreme elitists.
-Burzum isn't black metal, but that's only on a technicality. So therefore I will state that if you like "black metal" and you don't like Burzum you are obviously a homosexual.
-Immortal are holocaust metal.