Mistake : simple those who are not patient and just sell of their btc when they think its crashing
It's because they are impatient. Newbie is always reckless in making decisions, for example when prices change quickly they will think to sell their bitcoin in the wrong position just because they panic and scare?
I do not think it is because they are impatient, I think it is because they do not believe in bitcoin, I will never sell my bitcoins for a bad price, I will hold until things go back to normality and even then I will not sell because Im waiting the day bitcoin is worth a lot of money.