While testing the new Enhancements on Lamm I went to the Demonweb to kill a few mobs.
While I was there I spotted a named mob and killed it.
When I went to loot the chest, this is what I discovered:
The Reroll Loot button is uncannily close to where the Loot All button has been since forever.
I've spent the last three and a bit years building muscle memory when it comes to looting chests, it's instinctive by this point, open chest that you know has nothing named in it and hit Loot All at the bottom of the window. When you've been running quest after quest after quest, you don't even think about it, you just loot the vendor trash and move on.
Only now you've placed a second option exactly where I always click...
The Reroll Loot button should be at the top of the window to prevent accidental clicks, or at the very least switch the positions. Most people are right handed and so move the cursor to the Loot All button from the right hand side of the screen.