I think many of them sell their altcoins in panic, they are afraid to lose more, then sell their altcoins at very cheap prices and suffer huge losses. At the moment the market is not stable and the market tends to move downward, I think now people must be patient.
Panic is not a good solution for what happen in the crypto market today. It is not good attitude as an investors selling there token with a huge losses. It is much better to hold until market will bounce back. Crypto market trends is just normal. It will pump and dump anytime. There is nothing to do panic selling of tokens.