Foolish or low iq is i think will depend from person to person  . warren buffet for example is an educated guy , he is smart so he isnt a fool or a low iq person  . if he dont sell his coins at the pump , he cant still be consider as a fool/low iq but he can be consider smart or wise because he knows that bitcoin can grew more in the future and he can get alot of profit as much as when he sells his coins at an early pump  .