When you search the forums, you don't get a complete set of results. For example, if you search the Demos & Libraries forum for "sidescroller" you get a link to this post, but you don't get a link to this hub entry.
It seems intentional that you're only showing the latest post that's linked to the hub entry and not showing the hub entry, but this isn't ideal. At first glance, because there's no link to a hub entry, it looks like the library isn't available. If anything, I'd rather the search results only show the library's hub entry.