Matches my experience. I'm reminded of 80s and 90s sales lead phone lists - those used to be marketed as precision means to reach your choice of age, job-level

Matches my experience. I'm reminded of 80s and 90s sales lead phone lists - those used to be marketed as precision means to reach your choice of age, job-level, city, income etc. I once worked for a company that tried a few of these, from allegedly fresh, first generation data. They were universally crap, with the same errors and copies of everyone else's wildly wrong and obsolete garbage. Lists priced per record. Aha! Adtech is burning down the web and everyone's CPU with all that precise tracking and ML targeting that tells them nothing. Priced per click. How surprising. When Google and Facebook opened some of their profiles to be looked at, maybe 5 years or so back, Google got every major thought about me wrong - my gender, my age, my interests. As it had with most in the office. The whole myth around precision seems no more than a marketing fairy tale to sell ads and justify tracking, very badly. Peak for advertising being useful was very early web with static page ads, simple keyword ads on search, and the odd site sponsorship. Oh, and "customers also bought" on Amazon, that worked well for books and CDs, but doesn't work at all for the 499 other categories they now sell. These days I block everything - JS, uBlock, PiHole. I think there's 10 or 20 sites allowed a little JS, and the odd reluctant exception for bloody hateful reCaptcha. The web's speed is lovely again. Haven't seen a web ad for years - except the odd one or two at work.