I’m thinking because of censorship, the great firewall, and different methods of surveillance. With those what are the methods for selfhosting locally and vpn or publicly through a domain.
VPNs are highly restricted. China has their own subset of the Internet that only quasi connects to the rest of the Internet. If it's not politically or socially objectionable, it's allowed with little to no oversight.
Gotta love totalitarian government's hellbent on curtailing personal rights and privileges.