Currently, the documents of Sina Weibo used in ToS;DR is the English version. While I do agree with the view that English version is more suitable for the website since it seems that English reader is the most common, I feel that it should be better replaced by the Chinese version. First, I present the link below.
《微博服务使用协议》 - ToS
新浪微博个人信息保护政策 - Privacy Policy
The reason why I purpose this is because Sina Weibo is a Chinese service (We all know what it means) and the Chinese version of ToS covered far more content than the English version. The thread is for seeking consensus.