(haha, I’m here too cuz I was confused and Google led me here)
The way it confused me was that I was trying to remember which direction positive rotations are relative to the positive directions of each axis, and that’s how they appear inconsistent. If the +X or +Y axes are pointed directly at your eye, positive rotations are counterclockwise. If the +Z axis is pointed directly at your eye, a positive rotation is clockwise. I’m not suggesting it’s wrong, just saying that that /apparent/ inconsistency is what’s confusing (and, for me, hard to remember 
).