Domain names that are limited in their functionality by the TLD are really interesting to me. I know all of .dev is on the HSTS list, for example. I'm currently working on a subdomain registration service that only permits A/AAAA records in the private IP address ranges [1], but still supports certificate issuance over ACME DNS-01 via TXT rrecords.
For jpeg, that would be a terms of service agreement? Or would the TLD manage all hosting?