They are all scammers, living off membership fees, intelligence tax, those who charge for group memberships are all scammers, report them,

There are several people in this square who spend all day doing data analysis, aiming to attract you to join their group, charging you hundreds of U per month. Just think about it, if their data analysis is so impressive, why do they need to rely on charging for money? Don't be fooled, there are plenty of free analysis software on Telegram.