Often in the game you are fighting waves of monsters in the same place (arena, gates, beacons) and the screen will clutter with gold drops. Unlike items you cannot filter these with loot filter, or hide the nameplates by hitting Z. And there are better things to do in these close quarter battles than running around picking up gold.
My suggestion would be an option in loot filter to hide drops under a certain value, or alternatively letting us toggle the nameplates along with items by hitting Z.
Thanks!