Relatively sophisticated investors may be selling eth to obtain more bbc because they know it will rebound, however investors like the original qquestioer who invested because they were told they can make some quick money  are panic selling because they do not have a clue what is going on and are watching their money evaporate - the ethereum downward spiral was fuelled by over promising and under delivering its scaling solutions, this creates lack of confidence and the house of cards starts to tumble.