that is the story of a great number of "traders" in this market, and most of them never learn their lessons. I somewhat agree with the first reply but I say he might have learned his lesson only if he doesn't come back ever or only comes back when the educates himself. but in my experience these types of people never change. soon enough when the big rises begin they come back and again lose money because of bad decisions. in some cases it is even like an addiction!

and that doesn't stop there either, some even go to altcoins since they lost money in bitcoin and then get crushed even harder because they suddenly decide they should bag hold altcoins and as they get dumped on them (since they are pump and dumps anyways) they lost all their money there.