Well Blizzard has posted about other farming "exploits" being nerfed so there's always a possibility of that. And if not than something more than just a couple of people out of a 10 page forum post having what could very easily just be bad luck. If this post starts filling up with multiple people coming in on or around the same day all complaining about lower drops than yeah it's probably been nerfed. But its hard to say one way or the other when the split is, at very best, even between people saying that they get nothing and people saying that it's still good. And not saying that this is what you've done but I'm sure at least a couple of the people who are complaining probably went in and did it 5 times and got nothing and proceeded to call nerf. Either way even if it has been nerfed it is still one of if not the fastest/easiest place a wizard can farm a reliable drop. Again I'm not trying to start a war with you just pointing out that there is merit to both sides of the issue and the fact that RNG is involved chances are we'll never truly know if it has been nerfed.