Quote from slidertrader:
C'mon guys - give me a break.
Where I come from, inefficient pricing = opportunity for traders.
Either way - Reg NMS still exists, which means that if a print is going to occur on one of these dark pools, the pool still has to ensure that there is not a better price available elsewhere. If there is, they have to take that liquidity first.
No matter what happens in the future, one thing I'm sure of is there will be plenty of opportunity for those willing and able to adapt.