I think it’s a fad that will pass. In the meantime they are paying good fees to the miners, which is nice.
I am a bit afraid of what could happen if illegal content is uploaded and suddenly the bitcoin blockchain is “illegal“.
In the longieren I think NFTs will naturally move to a sidechain which is cheaper.


Could you omit the part before the @ if it equals the part after the @ sign?
Just as a UI feature for clients.


One solution that comes to mind is an image hosting service that only allows uploads from whitelisted npubs.
They sign images they upload and certify that they comply with the TOS.
Hosting provider could demand an upfront bond to be locked which can be seized when TOS have been violated.
A small additional ⚡ charge per uploaded image could account for storage and moderation costs.