Is Luckin Coffee's username random?

When registering a Luckin Coffee account, the system will randomly generate a user name for the user. The purpose of this is to protect users' personal information and privacy, and prevent users from directly using their real names or other easily identifiable information as user names. By using randomly generated user names, the anonymity and security of users on the network can be increased, and the risk of malicious attacks or infringement of users' rights and interests by criminals can be reduced.