Maybe the foreword, acknowledgements, preface and various notes contained something of value.
It's a standard so no one has to think "does this page have enough space", and the notes are often relevant to the current page. Stuff like the photo in https://www.thedailybeast.com/photo-details-obamas-speech-ed...
They print it out and people go over it with a pen, make corrections, comments, etc.
But as ceejayoz points out, taking notes on the actual page is better.
I was having a dig at how long it took for the document to get to the point.
It's a standard so no one has to think "does this page have enough space", and the notes are often relevant to the current page. Stuff like the photo in https://www.thedailybeast.com/photo-details-obamas-speech-ed...