VBSeo created a nice plugin for vbulletin that creates a sitemap. It also allows you to add the "show post" pages to the sitemap. Those are the pages that you get when you click on the number in the posts in a thread. Those pages contain only one post with a link to the thread. Is it a good or bad idea to add those "showpost" pages to the sitemap? It would create some duplicate content. But that duplicate content would always only be a fraction of the thread. Could the benefit from having hundreds of thousands pages in the sitemap (instead of only tens of thousands of threads) outweigh the disadvantage from having duplicates?