Wow, so Twitter was hopping on a briefly-profitable but also widely-reviled trend in a way that wasn't even making them any money??? Yeah, I'm starting to see why the company was in such bad shape financially that they were desperate to sell themselves off.Twitter wasn't selling the NFTs themselves, it was just a way to display existing NFTs as your Twitter avatar.
The hexagonal avatars still exist, though they're of limited use to tell who to avoid, because they require having twitter blue, which is a more universal indicator of who to avoid.