I didn't even knew about this one, the devs and the witnesses involved acted so fast to implement and run this patch, which is definitely amazing!
What makes me curious is the fact that nobody tried to power down more SP than they had, at least not by now. This is one of the reasons why Steem is still in beta and actually we are the beta testers.
So, somehow, even though he has done a bad thing, I guess that we should congratulate @nijeah or who is behind that account for highlighting this vulnerability in the Steem code-base. It is definitely better now than later :D
RE: Steem Blockchain Patch Issued