If you must follow or use the services of trading signals which is not bad in itself you should do so smartly.
If you are smart, you won't use trading signal services as you can learn trading knowledge, indicators, technical & fundamental analysis and psychology cycles of market.
By smartly, I mean that at the beginning it is all about following and understanding the thinking process behind those signals and learning everyday.
If you can use free trading signal groups to support your learning, it's helpful and I guess you are referring about that. If you use trading signal groups with different ways and not for learning, you will be more dependent on those groups and even after months and years, you will not gain any knowledge.
If you insist on using them, do not do so blindly, validate each signal provider by putting in the work. Record their past four to six months' trades on a spreadsheet and check them on historical charts. After you have done this, you may now proceed to choosing the ones consistently in profit despite their losing trades. The advantage is that they will help you reduce your time spent in analysis.
It is good way to learn trading but most of people who use and rely on trading signals will not care to learn as that. It takes a lot of time and high discipline to check results of trading signals. I am sure not many people are ready to do those steps and can complete their tracking process.
I appreciate your guide as it can be helpful for newbies who can complete these steps and for such newbies, if they see your topic, it will be a gift for them.