> That's the author's point -- his dynamically changing NFT was revoked in this manner.
For me the much scarier weaponization is to change the linked content to be something illegal after you buy the NFT. How would you prove the illegal thing is not the thing you bought? (You will certainly not be treated as innocent until proven guilty if we're talking child pornography in the USA or democracy advocacy in China, etc etc.)
I don't think making them revocable defeats the purpose, it's having the registry of NFTs effectively being "OpenSea API" and not "blockchain" that's the problem. Having the NFT content itself be erasable is probably a good thing as long as there is some way of making a local copy. Sometimes we want the government to have the ability to stop the spread of information; but (subject to the risk of your possessing it) your "ownership" of content with a hashed URL is also going to apply to the download, assuming the hash is reproducible.
For me the much scarier weaponization is to change the linked content to be something illegal after you buy the NFT. How would you prove the illegal thing is not the thing you bought? (You will certainly not be treated as innocent until proven guilty if we're talking child pornography in the USA or democracy advocacy in China, etc etc.)
I don't think making them revocable defeats the purpose, it's having the registry of NFTs effectively being "OpenSea API" and not "blockchain" that's the problem. Having the NFT content itself be erasable is probably a good thing as long as there is some way of making a local copy. Sometimes we want the government to have the ability to stop the spread of information; but (subject to the risk of your possessing it) your "ownership" of content with a hashed URL is also going to apply to the download, assuming the hash is reproducible.