Ask HN: Can an ad personalization market even work?

Reports have been circulating that since Q4 2021 that ad spending is falling[0], but most large companies in the space have been sharpening their capacity for ad personalization.

- Do ad-techs have a perverse incentive to do a poor job of it to drive up ad spend artificially? "Dyspersonalizing" of ads?

- Would this even be obvious to companies?

- Have advertisers insulated themselves, or managed the risk of adversarial dulling of ad effectiveness by tech companies?

[0] https://www.bloomberg.com/news/articles/2021-10-22/snap-warning-feeds-concerns-over-social-media-ad-splurge