Spent all night trying to figure out the platform... i must say it's impressive.
I'v had fun doing some arbitrage thanks to the market platform (try it out if you haven't).
Wait... did you say profit?
Simply created a buy order below the market price for Bitcoin-SteemDollars on Poloniex & Bittrex, once the order get's filled i just transferred the Steem $ to my Steemit username.
It's basically arbitrage, and there are loads of it! i made 0.04 Bitcoin on one trade on an occasion.
I can explain the arbitrage in detail if anyone is interested. Excuse me for the unorganised post i hardly slept.