he didnt say that he was tricked or scam but he only said that he was shocked . what happen to him is really shocking and if that happen to me i will also feel the same . 600 usd to 16 is a big dump but he should have sold his coins when he saw the total price of 600 usd because he wont still loose since he only got it on airdrop . now if he still didnt sold , he still have a chance because the coin can grew back again even not close on 600 usd but if the price cross at over 200 to 300 usd that is a good selling point .
there is no way he can sell the tokens he receive that time because its frozen no airdrop receiver are able to sell any single coins in exchange that time. I can't considered this as lost since its given for free the owner of that tokens just want to take profit by manipulating the price that time after sending it to many addresses.