I feel like they've been getting more lax, giving people 6 month and 18 month slaps on the wrist. In a perfect world the method above would work, but I don't actually think that it'll actually deter anyone.

Serious botters will still bot.

Casual people who get tired of tedious actions like flipping omen cards or buying out bunches of auctions listed in stacks of ones (I have a btag friend who admits to using a click bot to do this and I can't really blame him). The later, Blizzard has started taking steps to reduce tedium with mass milling. They really need to improve the AH interface or make the remote AH app let you make more than 200 purchases a day as the remote AH interface is arguably better than the normal one.