If you cancel an auction. It should return to you as a BoP and not as a BoE. This will stop the bots from cancel scanning because they can’t relist the item.
Blizz can have a popup warning to let players know if they cancel it. The item will be BoP and can’t be relisted.
So, if I list an item and see prices start to plunge, I can’t relist at the price it is being bought at I need to wait around for no reason? What a terrible idea.
My other suggestion was to break TSM but some people don’t want that. This still allows people to post their auctions with whatever addon they want to use.
Anyone who has used the AH even a decent amount has likely listed something for the wrong price because of a misclick. There would be so many tickets about this the first day it was implemented.
Cancelling an auction != waiting for an auction to time out.
Personally I think this isn’t a good idea, but “muh people undercut me” doesn’t actually mean anything when you can wait for it to either sell or time out at the price you put it up for.
It’s a surprisingly regular thing around here. Raises my eyebrows.
To the point that I guess we now have genuine bot deniers. It just isn’t happening at all to some people.