The Chinese government reserves the right to ban censor and shut down any form of online speech going on in the country.
In fact, they reserve the right to throw you in jail for doing it.
Where is ever an event or a situation or a topic of discussion which the state does not like they flip a couple of switches and all across the country firewalls begin blocking words, banning access to VPNs, and generally preventing those topics from being able to be discussed.
They believe this is good because it promotes social stability, when in reality it's just a massive system that empowers the government and ensures that the people can never easily disagree with it.
Anyone who supports such a system or a country who runs such a system should not be running and open source message board.
And at the end of the day unless you want to be running software on the public internet which is out of date, you're going to be running their updates, which gives them long-term control and ability to mess with the network after time.
Plus the basic fact that writing such a large and popularly used piece of software gives you a fair amount of social credibility and attention which is not served by those people.
If someone is willing to go and do the legwork of doing a full audit and commit to maintenance of the project in the future I would totally run that code.
Until someone does, you should stay the heck away from it.