Exactly! If there is any moisture left and it can't dry, it could start to mold.
That's actually a problem with my dishwasher, which can't be left slightly open (it always closes shut), and me being a single, so it takes time to get a full machine. If I want to prevent mold I either have to start the dishwasher half empty (which is counterintuitive) or to collect the dirty dishes outside the dishwasher until enough have accumulated to fill it. But then you have all the dirty dishes lying around. Argh!
