Re: I am no lover of the Chinese political system
The problem isn't China banning Bitcoin, as you say. That seems a pretty good thing.
However China's new digital currency - not so much. Sure it'll be better for the environment, but it's also designed to let the government track everything you do. If you read about what they've been doing in Xinjiang, for example, that should really worry you.
Apparently, if you're a foreigner (or exile), the way to learn that one of your loved ones has been in a concentration camp for 6 months is a text message praising Xi Jinping about a year after they get out. So they'll disappear, and you'll not be able to get news of them. They only get out if they toe the party line, say all the right things in political re-education lessons and do their slave labour properly.
But they also have their mobile phones taken off them. They're only allowed a Party controlled mobile once released. Clearly talking to foreigners is suspicious behaviour, and they're liable to end up back in the camps if they do that. So apparently what you do is wait a reasonable time, showing how good you are with your monitored communications device (if you don't use it every day that's equally suspicious - that you've got an safe phone). So after keeping your nose clean for a bit, you can now contact your friend abroad, so apparently the code for "I've been in a camp and am on a compromised device" is to send them a party slogan. But at least they know you're alive. And hopefully won't get re-arrested.