Well first off, if your arrows are appearing on the ground for everyone to see, your fighting a monster TOO STRONG FOR YOUR RANGED LEVEL!! People just dont understand that sometimes, NO! 30 ranged wont kill a lesser demon that quickly! So if your arrows appear on the ground for everyone to pick up, it's fair game.. and the person who was ranging to slow needs to go fight some easier monsters. I think arrows 'thieves' aren't doing anything wrong, although they wont make any friends taking another persons arrows..