You need to do a search here regarding SPAM listings. Most of your listings are SPAM. I assure you that the computer batteries, 'Chifon Dresses', Apple iPad, and most software listings are just that plus no one really wants to see them. Fortunately, there are some good WordPress plug ins that will help you. We all get those ads without the buffer of SPAM protection. I know that I did.
Coming from a domains background, I am none too sure about the .co domain name. I know that the regsitrars have been pushing them and acting like they are almost the same as .com or .co.uk but they are not. Internationally, people expect the 'm' to be added and in the UK, the '.uk' is expected; I am pretty sure. If 'AdFree' is owned in those other extensions (and I suspect that it is) and you are successful, you will be helping those other domain owners with traffic that is meant for you but lost to them.