I think he did it to avoid confusion. If you open an auction, you should stick to it. Example ~ if I bid $10 through the auction thread, my bid stands. If another person offers you $20 through your other thread, then what happens?

I get disappointed because the chances are high that you happen to take the offer in your other thread over the bid I made in your auction thread. It basically means that it's pointless to have an auction thread open.

I can definitely understand why he deleted the threads even though it wasn't against the rules.