Tall man. The more detailed, true and reasonable the complaint information provided by the user in the QQ commitment letter, the higher the probability that the blocked QQ account will be unblocked. After the user completes the real-name authentication of QQ account, it is easier to prove his identity and authenticity, thus improving the probability of unsealing. The QQ commitment letter has a high probability of unsealing because users provide detailed complaint information and real-name authentication information.