 Complete the following phrase:  The phenomenon started in English but has spread to other languages including Japanese massive number of videos on Nico Nico Douga on various topics, Chinese influenced by Japan, comments on Wenzhou train collision and many other sensational topics mainly on Tudou and Youku. In addition, Hong Kong people used the clip to criticize social events, like Cable TV un-subscription, salt shortage due to misbelief of salt being able to protect from radiation from the 