There was a similar technique used to prevent botting on MMOs. The game would drop extra loot in a way that humans couldn't see or interact with, but bots would

There was a similar technique used to prevent botting on MMOs. The game would drop extra loot in a way that humans couldn't see or interact with, but bots would pick it up. Once picked up it couldn't be dropped and wouldn't stack in inventory, eventually making the toon worthless.