For mobs that are also resource, it would be nice if we had the capability to expire the corpse after looting it if we do not intend to gather from the body. When you are killing mobs in mass looking for specific drops, it is difficult to loot them sometimes due to the close proximity to each other that the fall in. While it is possible to loot them all, it would be more convenient if there was a "Loot and Expire" button that would despawn the corpse after looting.
Here is an example of mobs in close proximity making looting difficult.