1. Patreon exists, this seems like a far safer way to support the creation of art (and a lot of artists already use it heavily).

2. The monetization of art is a heavily controversial topic and a lot of artists rightly think that patronage is a much better system to exist under since it provides a more reliable and stable income.

3. Paper is pretty immutable generally speaking. I don't think NFTs will actually significantly impact issues around long term art providence with both laundering and forgeries still remaining prominent. Additionally, almost all of the art world already supports publicly anonymous transactions to protect purchaser privacy.

4. I think there's some interesting stuff in this realm with interactive art - but I think there are ways to accomplish much the same thing with conventional sale processes.