Actually, some members in crypto are just new and they really don't understand how crypto market works. They just only think of price are always in high or just always increasing, that's why they are the most affected person once price fall and then do panic selling.
It because they were scared they did not search enough about past of crypto market enough. Or maybe some of them searched and read but could not imagine about it enough. People easily believing some fake news it because money involved as well. Sometimes they do panic selling.