you are right, to understand this, you definitely need experience. there is very little written about it on the internet.
Usually something like this occurs when it is necessary to quickly raise or lower BTC.
Did he buy them? How else can you get something like that back?
I think if there was nothing hard, we wouldn't have anything to compare and wouldn't understand what's hard and what's easy.
Until I keep money on my card but very much want to switch to crypto.
Separate names with a comma.