The way I see it, "bots" exist in one way or another in almost every MMO. For instance, you can sell items in World of Warcraft to an NPC vendor. In the early days of its economy, this is how money was injected into the economy. Eventually, there was enough money that players started offering more than vendors for certain goods.
There are a few differences in DU:
First, it's integrated into the market UI (auction house). This is purely a plus, since it stops people from offering less than the minimum amount than turning around and selling it to the bots/npcs, effectively scamming new ignorant players out of some money.
Second, which is a debatable difference, is that the buy/sell prices are identical. In most other MMOs there's a substantial markup for buying items, typically between 2x and 10x. I'm not an economist so I don't know the macro impacts on the market, but this basically means players will never trade with each other for the affected goods, only with bots.
Lastly, the bots only deal with entry-level ores rather than a large number of otherwise useless items (aka vendor trash). As mentioned previously in the thread, this basically turns the market into a gold-standard economy, except the "gold" in this case is something that you can walk into your back yard and find strewn about randomly.
I believe the result will be hyper-inflation up to the point that the value of quanta is about on par with the effort required to dig up T1 ore. Basically get ready for 1B quanta to be pocket change.