[powerapple]

Many NFT would rely on urls, assuming urls would be online for ever and assuming the content they are pointing to will not change. This seems to be flawed don't you think?

About NFT itself, I use T shirt analogy to convince my self: you pay quite a bit for a logo on a T shirt, with NFT you are buying the signature the logo, so if we are already doing this in real life, we probably would do it in the future.

[capableweb]

Yes, NFTs relying on (centralized) URL is obviously bad and doesn't fit well with cryptocurrencies in the first place, as the entire point is to build a decentralized financial system.

NFTs relying on content-addressing are all fine though (like IPFS) and most of the NFTs I've seen are using IPFS, although some of them screw up the linking and add a link to a IPFS gateway instead of just the hash.