There are different types of groups in Telegram on the subject of trading. In fact, those who are really angel investors never invest with signals from someone else's telegram group. Many times fake signals are given to the telegram group so many losses have to be incurred. One of my cousins saw a telegram group signal and invested, losing about $3k. Therefore, if you want to be an investor, you have to have a deep knowledge of all aspects of cryptocurrency. Then I think you don't have to invest in Telegram Group to see its signal.