Talking to avoid scam telegram groups, but you offered anyone to join your groups since you claimed it's legit group.
Yes, we should avoid all groups including you.
Telegram group via trading is the easiest place of scamming, joining any platform of telegram for trading is a measure of losing any amount of coins you are to invest with. Because telegram of this time is made of scammers, and immediately you invest either you are blocked not have access to the group or formulated story will be render of missing coin