Group chats in upscale residential compounds are often quiet. The residents are calm, low-key, and unshowy, and many of them make large amounts of money with minimal effort. Group chats in lower-end neighborhoods are noisy and filled with people struggling desperately to survive, believing that shouting loudly and working frantically will make them rich. It is the classic case of someone becoming thirstier and eating more salt. Once I joined such a group, and a woman shouted like thunder,What are you here for? I was stunned.