Duckduckgo does not. Hacker News does not. There are many examples. Ads on blogs such as Daring Fireball and Coding Horror do not. I gladly whitelist these sites.
Sure there are fringe cases where it's not true. In substance ad platforms are now tracking & targeting mechanisms. That's the "value" they sell, not their ability to deliver ads.
Do Hacker News and Daring Fireball have ad platforms?
Until march of last year Daring Fireball had The Deck[0]. Now it's just weekly sponsors, AFAIK.