A small, self-contained guild-tax module for the mod-playerbots fork of AzerothCore. When a bot earns gold, a small percentage of it moves into its own guild bank through the real guild deposit path. It is real gold out of the bot's wallet, never cheated money and never more than the bot actually holds, so a guild full of bots slowly fills its own bank.
There are two taxable events: killing a creature (base from the victim's level, 1 silver per level by default) and turning in a quest (base is the money reward). Real players are never taxed, only bots with playerbot AI, and by default only the random bots.