It's happening! I tokenized domainfi.net using the new tokenizing registrar called Namefi and then used it as collateral for a loan on Teller!
https://decashed.eth.loan/2024/01/first-smart-contract-loan-ever-made-against-domain-name/
https://decashed.eth.loan/2024/01/first-smart-contract-loan-ever-made-against-domain-name/