Does OpenVPN still work, in normal or PSK mode? I wonder if at some point their filtering gets smart enough that they will just turn it over to a whitelist, or worse, straying too far from the "norm user" gets you a visit from police.
Regular openvpn sees disruptions. They sniff out the ip addresses that sees vpn traffic and blocks them. You can get a different ip and have it run (or do multi-encapsulated tunneling), but in my opinion, nothing about this issue is technological. At the very end, if you try to evade too many times, the government just tells the telco not to sell any internet access to you. Or get the police to show up at your reside…
The government knows that the expats aren't their customer for censorship, they just want to make it inconvenient enough for their citizens to get to the new york times or the scmp.
Have people actually gotten visa's revoked, that would be a crazy escalation by the MPS.