"Taking of another player's property without their consent is forbidden. Property includes, but is not limited to, weapons, gold, loot, building supplies, vehicles, vehicle parts or fuel salvaged from a vehicle. Looting of a player's body without permission is forbidden. Exploiting of game glitches for the purpose of advancing one's progress not allowed. This includes the process known as "Duping"."
-Quoted from The Beatnik Bandits' Rule Page
Doing what Sand described is clearly violating the game's system of trade. It exploits the inability of the game to decipher whether or not its goods are being ultimately traded to the correct party, meaning that there is no merit in earning any humanity or spending the time necessary to gain the perks.
