Base on my little understanding and experience in the crypto world, its absolutely not ideal for someone to sell while at lost even in the real market. Its obvious that all the bad news around were causing commotion in market these days. Holding till everything would balance and sell while in profit is the best. Good news would still fall in and green candles gonna show up which will surely affect the price positively. Thanks
We have this basic principle even in the real world of business and that is to sell you coin when it is high valued and hold your coin whilst it is on low price. So definitely it is better to hold your price today and wait till the value gets high again before you come up to your decision to sell your coins since we are also aiming the same and that is to have a profit.
Literally holding can make price go up its because the supply will be limited so the the law of supply and demand will matter. Dumping will obviously cause coin's price very low so as for me its good not to sell at this market situation to avoid over crash of coin value.