If you use its content to the fullest extent? If you maximize your visibility and content opportunities backlink? So many people who create / publish the content does not understand that even one piece of content can be equated to hundreds / thousands of backlinks and visitors. So how do you take every piece of content to create?
I think he is wondering how do we manage to arrange so many unique contents and how does SE works with the re written content we gathered from web. Not sure though.