Let them panic; other, more relaxed traders will make good money on them. And those who panicked will get experience, which is also important in trading.
Based on the disadvantages of panic sales, its shouldn't be encourage either, letting them know the potentials of HODL or being a potential skill trader is better. With what happened last year that brought the entire market down to bearish mode, was panic sellers momentum movement, which was wrong movement. If you can't Trade then Hodl and don't panic sell.