Maybe it is a good time to dump bad coins and turns to buy in great altcoin now. Every altcoin is dropping the price, no matter it is great or bad. So sold the bad and buy in great altcoin is a good choice.
Yes it is a good idea, but not when you bought a bad token at one price, and you will sell it for nothing. This strategy is not for me, the best option will be to wait out this storm.