This site is not blocked inside China, despite posts that are routinely negative about China.

I suspect that this may be because it is closely monitored by officials for activity by those respondents who are currently inside China. I also suspect that some posts are made to elicit responses from teachers in China who might recommend illegal activity or be 'too specific' about illegal activity that they have observed.

Additionally, the private school industry in China routinely posts erroneous information on this site to 'bury' negative reports on their own schools.