A contribution needs a real definition
A useful programme starts with one narrow activity, stated qualification rules, identifiable reviewers, private evidence handling and an appeal process. It should demonstrate real off-chain review before adding credentials.
Wallet balances, art purchases, token burns or payments do not manufacture a contribution. An earned record would describe a reviewed action, not a speculative rank or financial status.
Ownership and attestations are different
An NFT can change owners. A contribution record belongs with the wallet whose contribution was reviewed. Transferring the artwork must not imply that its buyer performed the previous owner's work.
A credential is an attestation by a stated issuer under stated rules, not universal proof. Wallet-bound does not mean person-bound and does not solve key sharing or multiple identities by itself.
Keep the optional work optional
The market needs tested custody, reserve accounting and clear transaction rules first. No future contribution programme should silently become a paid access requirement or promised token distribution.