idea:
you will need 2 accounts.
farm something that is not really needed. tiger meat for example. list it for 500g. do this in a mass over 2 weeks, but it all with your second account to fake demand. after 2 weeks list all you had for 250g. bots will think, oh so cheap. just 50% of its value, and you get the profit.
people like you that try to win vs ahbots is just pathetic, there's really no way for you to put them out of business. I have many times had people trying to win me with their gems enchants flasks potions mounts, they cant. If they keep me at lowest price and buyout everything I have, eventually, they buy my daily stock and sell few of them for good price, repeat next day, eventually, the you guy will have too much and have just lost big on it.