This happened entirely by accident... and I might keep doing it.
Changing baby. Realized pail for cloth diapers was still in the laundry room. Felt lazy. Draped diaper on random old coat rack in the corner. Repeated till wash. (did not do with poopy diapers)
There is no smell whatsoever, and I've always done an uncovered dry pail method. It doesn't look attractive, but they are draped out flat, right in the air, it's wonderful.