Not bug, so it's going in general discussion. I know people have complained about auctionhouse before, and TS are working on revamping the system.
I just discovered a very broken aspect of the sorting- firefly jars. Because an empty firefly jar is worth so much less than a full one... and due to the way auctions are sorted... I'm unable to buy a full firefly jar- the first page is full of empty or 5/7 full jars. I'm sure that this is just as frustrating to the glitches who are trying to sell full firefly jars.
P.S.- firefly catching itself is not quite right... else I wouldn't be checking the auctionhouse for full jars. You should at least be able to consolidate your half-full jars or something. Having all of my previously caught fireflies.. fly away.. when I attempt to gather more... is not my idea of fun. I just want to light up a carved pumpkin... it shouldn't take me an hour to do this!