The problem with ads in AI, is that they're incredibly creepy. People have told the apps all kinds of sensitive information that they never would have told a normal service. Obviously the advertisers are creaming themselves at that, but it's a new level of creeping.

It also allows them to subtly influence the messaging. It would be like if somebody tried to not bring out the Heinz at a family gathering. It just wouldn't be the same, because of the subtle messaging that has been inserted into the content. How could you trust them?