someone might just think of profit, so they don't think that the price of crypto money can suddenly reduce the price, and because they are ambitious about profits without thinking of losses for example there will be a sudden decline, that's what makes them panic and results in their defeat.
What is certain is that it is very severe that they do not know that the crypto price is fluctuating, of course we must provide that understanding so we can know and they can be more careful before selling it