To me, the biggest greed and evil is always the greed to make more money. Because even though mankind has made a lot of profit, it does not stop. He is constantly waiting to earn more money because this will increase even more. Afterwards, that crypto currency experiences declines and then, sometimes, it has to sell at a loss. I've had these, and I still do, sometimes. I think crypto investors should get rid of this greed.
Greed is not something that anyone can easily get rid of, it's part of us all, you have to get disciplined and stick with been discipline to be able to control your greed, when you are in a high profit take it, when there is a big time it's time to buy.