I believe that, while AI may be great at information gathering and dissemination, it can’t ever capture the nuances, emotions, or irony of human written ads.
Machines replacing humans in factories may work, but not so much in such an emotionally based medium as marketing.
AI written ads??? What is this, Skynet? Personally I don’t buy into it. Why is that? One major reason is that AI simply analyzes preexisiting material to create derivitively based copy.