How does someone short bitcoin on Bitfinex without getting rapped with the margin interest rates?  I mean I have $10,000 USD.  I want to short 2 BTC x1 (no leverage).  Why in the hell do I have to borrow BTC to short it when I can clearly afford the entire short position?   I mean I pay .2% to buy on margin and .2% to sell on margin, so I loose like half my profit if the trade is a quick one.

Anyone know?