The era of shitcoins is long over, people aren't minting new ones because no one is buying them, because everyone at this point knows that they're just pump-and-dumps. So the domain is worthless.
Not to mention, shitcoin-scammers were never picky with their names or extensions to begin with, because there's no point in making unnecessary investments in a rug-pull. Most of them were using .co, .io, and .xyz that they could just hand-register.