Because its all borrowed conviction "Profit is a good trader so surely he did his research so I don't have to" "Profit just sold, something must be up that he knows, he sold 5% I need to get out before he sells the rest of his bag which is BIGGER than mine so I don't bottom sell" Combine this thinking and multiply it by multiple big wallets and mass exodus from a coin it'll just look awful on the 1s chart Even the people who don't follow with that thinking will see the PA and get scared for pseudo same reason