Brother Sharp， who suddenly transformed from a mentally ill tramp to a well-known internet celebrity， has drawn great public attention and sympathy to his misfortune. But this incident reflects more of the general psychological motivations of people in the society， such as novelty， conformity， projection. What’s more， kinds of convenience of internet links and sharing tools can provide the technical foundation for the event prorogation. In addition， the anonymity of internet identification plays the role of “safety valve” for those who try to express their own opinions and at the same time avoid the corresponding responsibilities.