Careful when withdrawing from
https://btc-market.org/ guys..
They don't pay BTC fees so it looks like my withdrawal will be stuck?
It will(should) eventually go through. I have had tons of withdraws from many places that added no fees. The longest I have waited is 1 day, but they always went through. If you have a wallet that can send unconfirmed coins it may(or may not) speed things up by sending the inputs to another address and adding an overly hefty miners fee.