Do not laugh at others misfortune.
Yes, we make profit only when others make losses, but still, the next day we could be at the other end and lose big time.
It's really a zero sum game. If something in the pump phase, first those will buy, who have the information that it worths to buy. When the price starts to skyrocket, people start to think that they will miss something (FOMO) and despite of the higher and higher prices, they jump in, when the first buyers are already selling. Crash comes after...