Considering where it's from, I wonder to what degree all of the messages are funneled in plaintext through a centralized censorship engine. What happens if you start pasting excerpts of the wikipedia article for Tiennamen square to your coworkers?
This seems to be allowed in WeChat. But such text will be blocked if you try to send it in a group chat. I guess CPP allows you to talk privately but not publicly in a 300 people group.
By that means they can easily identify dissidents without allowing them to spread their message too far
Oh, wow, really? Interesting. I'll have to try that later. Is it all group chats or ones over a certain size?