Celtic Frost had virtually no influence on the subsequent development of black metal. The only really significant Tom G. Warrior project was Hellhammer, not Celtic Frost.
Well, Cold Lake is their most radio friendly album. It has the band dressed up all glammy in the band photos, but musically, not ALL that glammy, but it doesn't sound like anything Celtic Frost has ever done. People dislike Vanity/Nemesis mostly because it's the album after Cold Lake, and after that album, alot of people gave up on CF right there, not giving Vanity/Nemesis a fair chance. Musically, to me, it sounds like Goth/Thrash. Simple combination, but to be honest, i haven't heard any band attempt that since. Also, since it's more goth/thrash than it is the avant-garde black/thrash they were doing, people just didn't give it the chance. It's a pretty good album. Personally, I like them both, but if you like CF's early stuff, you'd have a better chance liking Vanity/Nemesis.
Celtic Frost had virtually no influence on the subsequent development of black metal. The only really significant Tom G. Warrior project was Hellhammer, not Celtic Frost.
Compare the song structures of Darkthrone to those of Celtic Frost (especially the "Panzerfaust" album). Quite a few similarities, yes? And Darkthrone is a band that defines black metal for a lot of people.