I feel sorry for the victims. Fortunately for me I transferred 3 of my 6 BTC to paypal right before this. I keep it distributed among my blockchain wallets, so i lost a bunch all the same. I'm not too sad, though, b/c in the long run it'll be fine.
I wonder how long it took to planned all this and if it was a inside job. Let's see if they were good in hiding their tracks, if so they'll live happily for their entire life time, living on a private island. But yea RIP to users who lost BTC.