This is a case study. In the first case, the girl failed to pass the certification, which may be due to improper operation. In the second case, the information submitted by the girl does not match the reality, so she failed to pass the certification, but it does not mean that the girl is a liar. Another possibility is what you said, everything is fake, so this kind of girl can't pass the certification, and her purpose is impure and deceptive. Therefore, when you meet such a woman on Jiayuan dating platform, you must be more careful not to be cheated.