Sounds too good to be true! It would mean one could "short" DRK

What is the source of this info? Like I said, it may be shooped ...
This is going to make this coin a trader's mainstay alongside BTC and LTC. Will increase volatility so great for traders (who can short it too, adding fuel to the fire) but is great news for hodlers too as will generate tons of interest in DRK
Yes, this is huge. Margin trading, swaps, maker-taker ability...this.is.huge.
Edit: bitcoin's Reddit page has many good topics on bitfinex:
http://www.reddit.com/r/Bitcoin/search?q=bitfinex&sort=relevance