those who want big profits in a short time will certainly continue to be greedy and will not be satisfied. when their portfolio already has a lot of profit they don't sell some of it, they continue to hold it until the price crashes and suffers a loss.
The loss is suffered only when the coins are sold and not when they are being held. With bitcoin this chance of suffering a lose is less too. Again this will depend on the trader's mindset being made of nerves of steel, in which case they will accept movements as opportunities and not gains/losses.
Psychology must be controlled so as not to harm the investment made, so that the initial strategy continues to work properly. If the target has been achieved, sell and enjoy the profits. enter and exit the market at the right time and use the money that will not be used in the future for any needs.
Truely, selling and buying back must be done. But most traders fail to do at the proper time, in which case just hold, it will end up being the same.
Again this is the way the market weeds out the weak hands and only the composed diligent traders remains. Patience is important here, but being able to hold till the price reaches and then taking the chance to sell is equally important.