I'm pretty sure it's against policy to put your own wanted requests in someone else's wanted to buy ad. Its easy enough to post your own ad. This is also why people with an item the thread starter is looking for shouldn't reply to the thread publicly but use the private message feature. If you're offering a part to someone who posted an ad,it should be to them alone.posting that you have something publically just encourages others looking for the same thing to reply by pm trying to get it. This seems to be a common occurance though.