[mrweasel]

Effectively the advertisers could buy less ad space and get the same or better conversion? That is somewhat hilarious because that means that not only are the end-users "the product" the advertisers are as well. There's only cows for the milking, on either side... and shareholders.

[rrrx3]

Yes. It works really well. You can do a WHOLE LOTTA ARB(tm)(circle R), buying the crap placements at super low CPMs and selling the performance difference to clients. This is mitigated by those clients who ONLY WANT THE BEST (but of course, sir, right this way) - but there are ways around that, too - like the MFA (made for advertising) domains of all the big-name sites you can think of that solely exist for your RTB machine to pump ads stacked on top of each other, and only visible to bots and crawlers. It doesn't help that on one side, you have folks astute with math (Data Scientists et al.) and on the other, a metric shit ton of Media Planners/Buyers who are just handed a budget and are often pretty naive about the intricacies of how it all works. But it all sort of goes back to the original point - people put on blinders. They just wanna see the metric get hit, the numbers go up. Most of the time they don't care how any of that works as long as they look good to their boss, and the industry mostly obliges.