This is common knowledge. You can't send a picture of winnie the pooh without it being scanned first and deleted over the wire before being received.
People don't use WeChat to organise dissent against the government or for any kind of malicious or illegal activity. The intention is for well meaning folk to communicate and do business online.
Ironically, by implying that all "dissent against the government" is not done by well-meaning people, you're the one portraying the world as binary.
Political dissent, including protests, demonstrations, boycotts, sit-ins, and marches, have contributed to the advancement of society on many occasions.
People don't use WeChat to organise dissent against the government or for any kind of malicious or illegal activity. The intention is for well meaning folk to communicate and do business online.