I can't tell if you're being sarcastic or if you are being serious? But, in case you were being serious, I think the blog post does not quite come to the same conclusions you seem have come to
I really like your idea and had similar thoughts - curious how you would build this, and if you planned to? I saw in your comments you ran a website that sounded like an earlier version of Reddit - could you share the name of the site? My email is [email protected] if you aren't interested in publicly posting that info ( I would have emailed you but there's no contact info I could see)
In the video the person starts a new online store and shows how he measures his return on advertising investment. It seems to be a pretty direct correlation between his ad spend and his increased sales.
How do you match up your thoughts on advertising with the prevalence of these kind of "advertising success stories"?