You're right lazy people usually trade counting on bots or signals they need to form more profit with less work but it's never possible to trade nobody can succeed without diligence Most of the time the signals are with the incorrect signals so trading is at a loss. If we analyze the market ourselves and trade then we will understand the present state of the market and gain knowledge The above discussion is great for traders.
I agree with you but I find no harm if we can take signals from various groups and use that information to analyse our own decision, for example you follow 5 signals groups and just try and find the average signal they are giving and then do your own diligence and see what's going in in the market. So, basically signals aren't that bad if you know how to use the signals to your advantage while if you just blindly follow signals that is a major risk like you said they are mostly incorrect. But comparing signals with your own prediction sometimes can be helpful.
There is a concept of copy trading very popular now days but I never actually liked it, because you get to learn nothing and with time you just become more and more dependent on others.