I'm at the event right now, was waiting for 4 hours in Victoria park before finally started moving. People are very peaceful and non aggressive, and I'm not sure this strategy will work.

Extradition to China is basically extradition to North Korea, a lawless country with no police, no courts and no justice.

Eventually this will extend to crimes like using a VPN and operating a group chat, not to mention the threat to businesses, journalists and lawyers.

I imagine if my startup refuses to provide data to mainland China, I could be held without court at an undisclosed location for as long as needed.