Per title as I was buying things on Skyfire I noticed several items listed at 0 copper which I didn't even think was possible but still. I bought a few to see if it would go through and it did so I stopped as I'm pretty sure this has to be a bug? Edit: It seems to be the list all feature, when used it listed everything including things that dont have a price that may have been used just to click on to search the market quickly but not intended to be sold.