when someone try to force price down he chain price with walls .....but what we have here is someone got ALOT OF DARKCOIN and just want to get out of market FAST for some reason
It was some sad people trying to rush into aurora on poloniex. Hilariously, they are now the bag holders who bought in at 35 dollars.
and with a premine of aurora of 50% and iceland has declared crypto currency illegal i can only assume its a pump and dump operation in progress..