Many of the telegram groups which give signals are run by the same people, I have noticed on multiple occasions of the groups giving the same signals. Many of the groups also conduct coordinated pump and dumps, and they usually send it in all the groups to gather a greater audience. Although some of the signals turn out to be correct, always do your own research before making a trade.
I agree with you. Some telegram updates are not reliable and they sometimes bring us unnecessary confusions which is quite hard for us to move with right decision making. Some of them aren't making enough information and accurate update about a certain project.