It's true! Skilled traders are waiting for that panic selling so that they could buy cheap coins and wait for a while and watch it grow then when the time is right they gonna sell them off and wait again for the next panic selling. Skilled investors are taking advantage from young investors that are always doing mistakes in investing.
but panic selling can also create problems for experienced traders, because when the new and inexperienced traders start panic selling the price start a rapid decrease in the price, although the decrease is a temporary one but still it put a very bad effect on all the market and therefore even the expert traders face problems and some time big lost. while some traders who are waiting for low price they get chance to buy in low price.