It’s already entered the annals of China’s brief but rich Internet history: On Sina Weibo, China’s Twitter, posts showing massive anti-Japan protests in China went viral on September 15th and 16th. Out in the real world, protestors across dozens of Chinese cities marched in the thousands. In addition to objecting to Japan’s purchase of the uninhibited island, Chinese netizen chatter has zeroed in on two issues: China’s nationwide anti-Japan protests and some protesters’ violent behavior.