Problem with targeted advertisement is not tracking part, problem is abusing with this tracking. All ad networks are showing you ads that are more like likely t

Problem with targeted advertisement is not tracking part, problem is abusing with this tracking. All ad networks are showing you ads that are more like likely to profit them, not what you are most likely to be click. So basically it is some Expected Value from the impression. if I am 1% chance to click some ad, but they are paying 20x more than the ad with 10% chance, you will see this low quality ad first. Why they would pay same guy's impression 20x more? Cause they are trying to target some vulnerability there. Things are worse than you can imagine, with targeted advertisement you can: - advertise some weight loss scam to be people who are not confident about their body ( or you can even advertise them candies ) - advertise them dropshipping items with huge margins ( cause you can afford to bid 10x for their impressions ) - advertise your partner about interest area before xmas with inflated prices ( if you have motorbike, they can advertise your SO with "best accessories for bikers" with inflated prices ) Basically targeted advertisement is not about showing us the most relevant ad, it is about making the profit from the impression.