> I worry about what sort of concessions tech companies have made and will make to gain access to the Chinese market.

Especially since the PRC government is getting much more aggressive in forcing Western companies to kowtow to their political stances even in their operations outside of China. Mercedes-Benz was forced to apologize for posting a Dalai Lama quote on Instagram [1], and a Marriott employee was fired after he "liked" a post about Tibetan independence [2]. This happened despite both websites being blocked in China.

The implications for companies with new Chinese operations that also operate an open web forum is left as an exercise for the reader.

[1] https://www.dw.com/en/mercedes-bows-to-chinese-pressure-afte...

[2] https://www.wsj.com/articles/marriott-employee-roy-jones-hit...