> The combination of Wechat and making it effectively the only option through the Great Firewall is an amazing tool for shutting out foreign voices from Chinese social media.

That plus the language barrier also makes it a convenient way for WeChat users who immigrate to other countries to avoid integrating into overall society as well as discussing controversial matters like tax minimization strategies. I'd like to think my government has considered the latter and is doing something about it but I'm not too hopeful.