NPCs wandering the wilds used to pick up reagents and other items on the ground. I don't think they do this anymore though. Walking through Luna today, looking at all the books and runes neatly placed in the exact same spots as yesterday, I wondered why the Paladins in town didn't pick them up as they walked by. It's not like the Paladins have a real job... the guards respond to threats, they don't! Keep Our Cities Clean from Bot Droppings!