Not to be a jerk, but isn't against bgg policy to make a post of your own ebay listings?
Each game page has a "Right Now on eBay" box. By clicking the little [add] link at the top of the box allows you to add an auction for that game be it yours or anyone else's. I don't know if there is a policy on posting them in the forums. I would guess that given the "Right Now on eBay" option, it would be frowned upon to do further postings. Does anyone know for sure?