Do people actually do this? Just to check, I logged into my server and looked around the front areas of Org, SW, and IF, but couldn't find any interesting corpses. A Google search of corpse grafitti turns up nothing, and there are no screenshots at all in the thread-- you'd think people who made works of art like this would try to capture their genius. And while we're at it, exactly how long do corpses of logged out players stick around, anyway? I know it's more than a day, but I think it's less then a week, so this is a pretty temporary artform.
Still, theoretical or not, I think it's a great idea, and I'd love to see it in practice sometime. In fact, maybe I'll log in right now, and place a corpse somewhere in the jungles in Stranglethorn Vale for you to find on your travels. The name? It'll be "Drlivingstone," I presume.