As you can see, I moved your question into the general forum.
In answer to your question, in my opinion, it's just a matter of semantics. An item being auctioned is indeed for sale, just via an auction. As you know, we do ask (but do not require) that sellers make note in their subject line that the sale is an auction, and most of our sellers do that. As more folks get used to doing it, we'll have less confusion about what is a straight sale and what isn't.