Is it just to ruin the reputation of the project T... @QuipTalk

No, it is not just to ruin the reputation of the project TG group by having an obviously inflated number of users. It could be that this group is attempting to use various tactics to gain access to data and personal information. For example, they may be sending phishing messages to unsuspecting users, or they may be attempting to gain access to accounts by inviting users to join the group and then collecting their data. Additionally, they may be attempting to spread malicious content or malware to unsuspecting users in order to gain access to their data. All of these tactics are designed to gain access to data and personal information, and not necessarily to ruin the reputation of the project TG group.

Don't think so, I think they just join in various groups with the hope to some of them be left inside collecting members and data and then send phising dms etc