But here's a thought:
How many times have you shot a dear and gone looking for the body, never to find it? Or an imp, a wolf, or even a mountain lion? These animal corpses are very hard to find if you kill them in a grassy area, especially if you kill them with a bow that sends them skittering off into the weeds. Why do I bother to look? I want my arrows back, or a pelt for money or trophy, or perhaps I'm collecting ingredients like imp gall or venison. There are reasons that go beyond just RP.
Or how about this, has anyone ever sniped an NPC from a distance, then gone to try and loot the body, never to find it?
Or how about the situation that I love most:
I gather up a whole pack of animals, wolves usually (because I have a wolf pack mod), then run through a bandit camp and become invisible. The ensuing battle is entirely too much fun. I love to run around and strike a foe or two here and there and watch the bandits fall one by one.
Almost invariably, though, there is at least one bad guy, usually the one with the most expensive gear, that falls somewhere in the grass and is never found.
So I propose: Detect Death.
A spell that highlights the dead bodies of NPCs and animals that are nearby. A little glow to let me know where in the heck that body finally ended up.
Thoughts?