lol pornkemon. Why should a pokemon have more value than a pornkemon? They are both just digital collectibles and ascribe as much value as the next buyer is willing to pay for them.

What's great about adult creators and performers being able to mint their own NFTs is it's a direct path to monetizing their content. It's also a way to support your favorite artists and creators that ensures your money goes directly to them.

And yes, just like any NFTs, there is a legal responsibility on the minter to only mint and sell content you have the rights to. Afaik this is not the responsibility of the marketplace.

Similarly, I could be wrong, but I don't believe it's the responsibility of the marketplace to prevent people from buying NFT porn because they live in one place or the other. For example, OpenSea does have some adult content, but I don't believe they restrict in any way who can buy it.