Please tell me why there was a sharp drop in the currency 0.00000317

A Gulden hater has dumped lots of Gulden on the market to harm this cryptocurrency. But the only loser is probably the same person

Why hater? Probably someone decided to invest somewhere else and sold all holdings.
Yes maybe you are right, but selling all, for more than 12000 Euro in a thin market as Gulden is at Bittrex??? That must be an hate driven act. You wouldn't do that when you have a little bit respect for all the other people in the Gulden community

Maybe there is a coin now which is rising fast.