As a relatively new member in this forum. I must say you've learned quite a lot of valuable things in this forum. and your advice are very useful for new members of Bitcoin community who preparing to start their venture into Bitcoin world and in this forum.
About the telegram signal groups. my opinion is  a bit difference than yours tho. I agree that most of them are not reliable but there are some groups which provide good signals. even those are also not 100% safe and accurate. but that is common in trading. also these are things you can't do by your own at beginning you have to learn them from somewhere or someone.