Can't say they are all liars. After all, some people are really doing it.

However, if it can be publicized online, it may be more likely to be a liar. If I had a choice, I wouldn't believe him even if he wasn't a liar. Because as long as it is online and involves money, I will guess each other with the greatest malice and regard each other as a "liar."

Although this kind of psychology is somewhat biased, it can prevent me from being cheated to the greatest extent.