#1 - Jan. 28, 2012, 10:05 p.m.
She's looking for an answer to some stuff. I've experienced the very same problem she has - when I put gold on the RMAH (say 2 x 1,000) and then put more up the original gold is removed. I'm not sure if it returns after it expires (goes invisible) or disappears entirely.
Let the bug be known!
Her other question is more how the stacks of items on the AH sell - how the system decides.
Quite a good question imo.