I think it might be human nature, when people hear discounts everywhere they buy things that are not necessary ... and should when BTC drops or hears bad news don't easily panic and be provoked
If bitcoin fells, I think that is a good opportunity to invest again. We should not be negative and look at another angle of that certain change. Dump is not always negative, it depends on how you will be able to make that dump an advantage to you and your investments.
I never consider dump of price as negative because for me this is a chance to buy some coins at the lowest price, it is only because of volatility which give us more chances to the same coins at low price. So I use it as my strategy that I buy at cheap price and make sure to sell it on higher price at green market, now is the best time to buy some coins from market at cheap price.