But the difficulty is rising too fast. It might not be profitable soon.
Bulshit
If the difficulty rises 6% or more each period, it will not be profitable.
it will be not IF the bitcoin price stays the same after xx months but if bitcoin price rises as the difficulty it will still be profitable thought it will still take months before ROI. in the current difficulty and btc price i can say im still getting pretty decent amount while having hash power on hashnest

Very good answer. It is not only about difficulty increase. Even if the difficulty will grow 6% in each period (which I doubt), with such increases in Bitcoin prices like in recent days (10%) it will be profitable. The problem will come only when the price of Bitcoin begin to fall. I hope it will not happen..

hopefully it will not happen, though because of the halving the bitcoin price might have its good ground price now, or maybe at the $800 level will be more friendly for us miners in this case and an increase of price based on how much difficulty has increased per 2 weeks period