They are facilitating the illegal theft. They should shut down the transfer of funds to poloniex immediately. Additionally the scam is so large that they should alert users to the scam with a pop up or disclaimer. This is just good business sense as they claim to be a social media website. You do not want your users to be scammed do you? Steemit is possibly coordinated with Poloniex to manipulate the currency. Their silence on the matter makes me suspect this to be true.

Steemit Should Take Action At Maybe 1 Million Now At 18 Million Stolen They Have To Immediately Suspend The Poloniex Account. They need to start refunding money asap...Not tomorrow but RIGHT NOW!

The lookout is just as guilty as the thief themselves!