A very well written blog! Yeah, it is true that the are/was a total failure. For some reason, I always hated those group and kinda looked like the group were there just to benefit those "experienced" traders you are talking about. They take advantages of those newbie traders for their own benefit (like they make them invest of some shit coins in an exchange were the leaders themselves were pumping the price and ends up dumping the coins). But I guess were some legit signal groups out there but failed due to those issues you mentioned.