It is very difficult to find singles that will give you profit, because Telegram is always controlled by fraudsters. However, if such signals are received from any exchange, then those signals should be followed. Moreover, it is better to refrain from following any signal from all other sources.
It is wrong to say that telegram is controlled by fraudsters because they are only controlling fraudulent groups and not the entire thing.
It is the job of the person attending such groups to do their dur diligence and not the people in the group to babysit them. If they are looking for quick and easy profits, they wil be fooled by such groups and their money taken away.
Signals from any group are fraud and should not be followed. There needs to be more awareness regarding this, because I see such topics come up everyday.