>there's no reason you'd ever want to revoke control of a domain
Careful with those words. Experience taught me that if there isn't a reason to ever want to do that, reality will eventually provide you with one.
Careful with those words. Experience taught me that if there isn't a reason to ever want to do that, reality will eventually provide you with one.
There's no reason to ever revoke control for messaging systems, though, genuinely: imagine if your e-mail address could be taken on a whim by anyone. It can be! But you'd never want to revoke control of a domain rather than just marking it as spam or illegal and dropping messages from it. It functions as an inbox more than it functions as an outbox.
Addressing space should be permanent.