I've been playing a monk and I have him half way through Nightmare, however I'm still a little confused about what exactly blinding does to an enemy. Some enemies seem to wander around aimlessly while blinded while some still keep attacking me. What does this status effect actually do?
I don't know how much this reference is reliable, but it agrees with your (and mine) observation.
Also, notice that elite monsters subjected to Blinding Flash recover quickly even if they
What I infer is that, elite monster can target you again in less than Blinding Flash's 3-second duration (even if you don't attack them), but the miss chance stays on for the entire skill duration.