This will absolutely work. My friend is from China, but lives here in the US. Most of her friends and family are still back in China. We communicate primarily over iMessage, but also on WeChat. About 2 years ago I sent her a video about the Tiananmen Square protests over WeChat by mistake - I meant to send it over iMessage. The next day she called me, really mad; her WeChat account was shut down, without explanation, and she knew exactly why (my WeChat message). But what's worse is many of her WeChat contacts also had their accounts shut down - not all of them, just her closest or most frequent contacts, like her family and close friends. My account didn't get shut down.

The impacted accounts were magically re-enabled 3 days later. No email. No notification. Nothing. It was a clear message: We're watching, all of you.