A quick indicator that a page has unpublished changes (e.g., something like a blue dot that indicates an unread message)
Large websites that get change requests from different avenues. Sometimes they overlap, creating issues when other changes get published before they should.
An author must do a good deal of sleuthing through version history to find out if there might be unpublished changes to a page. That information can still be incomplete at times, depending on the workflows the previous author executed.
An author would see this easy indicator on the Site Admin screen, so they could know immediately if there are unpublished changes. It will also serve as a reminder to publish the changes if they should be published.
Environment Details (AEM version/service pack, any other specifics if applicable):