For sale forum suggestion

I searched the forum a bit but didn't see this question already asked. Is it posible to introduce some kind of "sale ended" button or visual reference to indicate that an item has been sold? It should be clearly visible in the topic title. It happened to me several times while looking for a specific accessory or a camera to find an open for sale thread, send a pm just to find out it has been already sold. Or for example, right now in the For Sale section, there are a lot of open threads for items that has been sold already.
Thanks!
Nicolas.