Moonblood sounded closer to the first vocalist from Gorgoroth than he sounded like Nocturnal Culto. And no, that's not a good thing.
Really, I can't think of any other band whose vocalist sounds like Culto, even among black metal; his scream is really mid-pitched and understated, and rather unique in that respect. The closest would probably be Erik Dannielson (Watain), particularly on their earlier works (he doesn't sound like NC so much on Casus Luciferi).