I'm doubtful it will go that far. My guess would be forcibly removing them from the appstore and having ISPs delist the domain. That's enough to break the net

I'm doubtful it will go that far. My guess would be forcibly removing them from the appstore and having ISPs delist the domain. That's enough to break the network effect; I don't think enough users are going to sideload/customize DNS for creators to bother making content for it.