- An "influencer" gets her photo on a Wheaties box. After that, the influencer doesn't have to do overt advertising to promote the cereal, their fortunes are bound together.
- In politics, as the former US president so amply demonstrated, attention is a currency.
- What about the exchange of ideas? Can one talk about the contents of a book without selling (or discouraging the sales of) the book?
- Is any mention of brand names to be prohibited? If you can mention a brand, unless all the brand's marketing has been completely ineffective, you are selling the brand. Don't like it? Pass the Kleenex.
AUPs lasted only a very short time after O'Reilly showed their Global Network Navigator site at Interop showcasing the capabilites of a new graphical web browser from NCSA called Mosaic that could - gasp! - display inline images along with the HTML hypertext! (Probably hard for the younger crowd here to believe, but early browsers had to open images in a separate window, sometimes with a separate image viewer helper program. Yeah, really. Mosaic was a game-changer, that made the vision of the modern web obvious to at least 1% of the people who saw it.)
This one would be hard to enforce. Still a good idea.