FOR NEW #BITTREX USER INTERFACE!
I know most of you are confused after Bittrex changed its ui. It is now harder to understand compared to old ui (user interface)
Simply put your #Steemit "MEMO" on "Tag" section of Bittrex's withdrawal panel.
And put your Steemit user name on "Address" section of Bittrex's withdrawal panel.
You may want to try sending low amounts before sending larger amounts.
I did like that until i figured it out and the good thing is Bittrex warned me with "Invalid" notes on withdrawal panel when i did it wrong.
So, be sure to track your transaction on withdrawal panel of #Bittrex, just in case...