I was thinking about a way to disable gold farmers all together and think I came up with a solution. It would actually solve more than one problem such as inflation due to gold farmers and those who purchase money from them, and the farmers themselves.
Imagine this, you log onto your game account and know you want to upgrade your chest armor in X Game, so you browse through the list of all available items in the game and select an item on the auction house.
A bidding system, whereby you select an item you want to purchase and place your bid on said item, but you don't have any gold per say being stored in your bank because there is no such thing, only items. Let's say you bid 100,000 gold for an item, which meets or exceeds the sellers asking price, once you have placed your bid, every gold piece you make from the game goes directly to that purchase, or if multiple purchases were made at once, the gold you generate is evenly distributed amongst those purchases until they are paid off at which point you get the items.
If you are the seller, well, you are selling items to upgrade your own, so the gold from items you sell is directly transfered to items you have placed bids on.
All items on the AH are anonymous, so gold farmers can't jack up prices on items and instruct you to purchase it or vice versa because even if you bid high on an item, if one is available for less, you will recieve that item and the remainder of your gold will either go towards other items you have bid on, or vanish.
This would not enable someone to save millions of gold, but it wouldn't matter because inflation would be minimal. There would be people trying to farm items to sell but they would only get items in return. The only way to purchase items in the game would be to earn them or find them yourself.
Gold is thereby eliminated and inflation is virtually eliminated as well.
It's obviously not the most free system, but for a game like Diablo, I think it would work extremely well. It would also work with MMO's I think.
I'd love to read your thoughts.