Big multipools like NiceHash that ran up the diff on new coins, only to dump them for BTC were a big part of the reason mining was unprofitable and the end of 2014. Can't say I'll miss them, but it sucks to everyone that lost BTC. Been there with the MintPal inside job. At least they caught the fucker.
Understandable. You can similarly bitch at a company like Walmart for destroying brick and mortar type businesses, but everyone is just playing inside the constraints of the market. I'm disappointed for the lack of proper security and asset compartmentalization, they dropped the ball in a big way. For that, NH needs to be taken to task.
However, some of the comments here are a bit like victim blaming. If a hot woman is wearing a skimpy outfit, it doesn't justify her being raped. The rapists still need to be brought to justice. NH didn't deserve to be robbed. These thieves ultimately stole from miners like you and I. I don't think of NH as hot woman, but I hope next time she comes packing some good defence. (Tasers and guns? Dad with a shotgun? Maybe...)