1,Lack of analysis of current cases, as well as specific content of current cases. The lack of comparison of the impact of regulatory legislation in different countries or regions can add to the discussion of ethical directions and future directions, including solutions and technical foresight. 2, we can add a discussion of a failed sharing platform and summarize its reasons, and at the same time, a broader discussion of the sharing economy and the traditional model can make some comparisons. 3, the lack of historical background for the evolution of Internet culture can also add some more concrete impact of online communities on the real world.