The article contains a paragraph about ads and it reads like a nightmare:
> The full-page advertisement you saw on the previous page is an example.
> the paginated website design opens up new possibilities for ad placement and presentation, allowing for innovative approaches in terms of ad type, location, size, and interaction compared to traditional scrolling.
> highlighted and annotated sections often represent the user's key interests, allowing for more targeted and relevant ad placements
> ads embedded in the website will be included in these downloaded PDFs, increasing ad exposure each time the user reviews the PDF file.
> Paid subscribers could download ad-free PDFs, while non-paying users receive PDFs with embedded advertisements, providing a tiered reading experience.
This describes how ads are displayed in paper magazines. Sounds fine to me, I prefer static ads in predictable spots that don't cause page jumps the way "dynamic ads" do on web.
Why a nightmare? This is much more reasonable than the current model. It's just like print media ads.