I think this should be filed under "non-problems that don't need fixing". Has anyone ever complained that bushes and fallen trees don't stack?
I know that Dev. depts have to be kept occupied, but there's a point that's reached in lots of online games, where they are just fiddling with it for no actual reason. And it opens up the possibility that super ace pvpers will find a way of min-Maxing this to their advantage, and to the disadvantage of the rest of us. But my glass is half empty.