Do you remember starter content? In 4.7, we continued on our quest to make it easier for users to make their sites look the way they envision, specifically by enabling themes to define a limited set of “starter content” to give users a way to quickly get set up with content that best showcases a given theme’s potential. This currently only happens in a fairly limited scenario: when live previewing a theme that includes starter content on a fresh install of WordPress. So if you’ve never noticed it, that’s completely understandable.
Starter content in 4.7 was always meant