Thats bitter truth and everyone has to accept it. Yeah I agree upon your statement or whatever scenario you have put forth here as an example. The thing is, whether its ETHER, BITCOIN or any other long lasting coin that has grown in its value suddenly will have the same effect as you expressed here. Obviously for all these coins the effect of huge pump was supposed to be downtrend afterwards because 1) People sold at the pump 2) People saw all new ATH and got panic for sell and many more reasons like this which cant be ignored. Well, then the value dumps itself due to such unavoidable reasons and thus in the long run once the effect is disappears it will get back to ATH again.