But there's still profit to be made, buy the felblight off the AH and just wait for the prices to go up, the current drop rates are HORRIBLE go check it out, I'm not even sure if it's worth farming it anymore.
So buy the felblight and maybe even farm something else while the prices go up, which they inevitably will in 1-2 days while the current stuff is used up. The prices wont go lower because the drop rate is much lower so worst case you'll just sell it at the same price later on.
Personally I dont think its worth farming atm, very low drop rate and insane chance of player reports (and thus getting banned) in tanaan.