I not really think if crypto signal groups really useful. Maybe yes for who can know when to buy and sell. But usually it make us to pay in high amount of money, and i think my capital is less than how much i should pay. That is why i not use any crypto signal groups.
My opinion that it was never helpful in any way. The first one who bought are creators or admins of that group and they are the ones who really profit in this scheme. And op is right and that after the long bear period, people lose interest in trading crypto which stops new people to get in which is also stops those lying pump and dumper crypto signal groups who invite newbies.
No not really, been in a group for a couple of months and decided to leave, honestly its helpful for learning and gain different strategies that aren't basically shared anywhere as free.
I'd prefer building my own strategies not relying on them, as I know they aren't permanent.