With the Atlassian documentation now using Scroll Viewport, going to the native Confluence URL redirects to the corresponding Viewport URL, which just presents a search box and list of recently updated articles.
I, for one, like to browse Knowledge Bases sometimes, not just search.
Is there a way to do this? BTW, as stated in this Answers post, I think the move to Scroll Viewport was a bad move for technical documentation. For customer documentation, I think it would be fine, but for Administrators and Developers, it is just too limiting without support for pagetree navigation.