I think you misunderstood the OP.
OP is not talking about bitcoin futures, but derivatives traded with BTC as the currency.
This wouldn't create any demand regarding BTC/USD and therefore also wouldn't help stabilizing the BTC/USD rate.
But on the other hand it would definitely increase the usability and also adoption of BTC. Overall this would be a step into the right direction, since BTC would finally be used as a real currency.
The liquidity is the biggest problem with this. But once this problem is solved, i can smell a lot of profits from the first one implementing this.