Well I have be posting about this nicehash problem for sometime now,these miners have no incentive to hold since fees need paid so they dump eating up buy orders for whatever price they can get,this is reason price crashes and difficulty increases but seems only us loyal miners can see this,I regularly see pool xyz advertising his nicehash port and I used to mine there till he started looking for nicehash miners,greed is a terrible thing and destroys great projects,we are not alone in this problem there are many other coins been damaged by this behaviour and left with sky high difficulty and low price after they dump