In the end, 99% of people who trade crypto currency can be called panic sellers only with the difference that those you call sell when they see a local decline, and you when you see global changes. This is just my opinion and I do not call anyone to consider it the same way.
Everyone makes mistakes. Recall the end of 2017. The BTC price is around 20k $. He knows a lot of people what he sold and they came out very well. I know the group of people who were greedy and now they are very much because they have not sold ...