Cai Xia, a Professor at the Central Party School in Beijing posted an article on the media criticism of real estate tycoon Ren Zhiqiang, where she said that the former property tycoon’s criticism of President Xi Jinping’s address to state media last week underscores the lack of internal channels for Communist Party members to discuss policy. The article penned by Cai Xia vanished from cyberspace soon after it was posted.