Your response is different from what I posted. You can always pin the image on your ipfs node and it's going to resolve to the same, unique, hash (well, unless preimage resistance of sha2 is broken...) allowing everyone in the world to download it. That doesn't mean it guarantees availability - nothing does - someone has to host it.
Ultimately, the owner has to host it, or pay someone to host it, or hope someone else hosts it. Although nfts are small enough that any semi-popular ones may stay alive potentially forever as long as someone, somewhere, hosts it on an ipfs node. Potentially long forgotten by literally everyone alive.
Ultimately, the owner has to host it, or pay someone to host it, or hope someone else hosts it. Although nfts are small enough that any semi-popular ones may stay alive potentially forever as long as someone, somewhere, hosts it on an ipfs node. Potentially long forgotten by literally everyone alive.