RE: Steem vs USD. We are on our way to .85/USD! This could be the chance everyone has been waiting on to get some significant SP.
Aren't the STEEM wallets on Poloniex still in maintenance? I suspect they must still be, because whenever you look at the sites for coin prices, the markets/exchanges tab always shows the price much lower there. The hours later the prices drop on the other exchanges, with Poloniex continuing to drop as well to remain below all others.
I suspect that what's happening is that the inability of anyone on that site to withdraw their STEEM is driving the price down on that site, then people gradually see the averaged price across exchanges dropping, so expect to pay less than the market rate.
Meanwhile on Poloniex it continues to drop with no natural floor because as soon as someone buys it they find out they can't transfer it to Steemit or wherever they were hoping to store it off exchange. So they sell it for whatever they can get.
The only way I see our getting out of this loop is 1) Poloniex fixes its STEEM wallets (which I'm wondering why they aren't doing for sooo long) or 2) the coin listing sites start excluding Poloniex from the price averages, the way some do for KRW transactions to correct for the inflated S. Korea prices.