e.g. Hacker news uses no tracking url but uses Cloudflare which tracks the user across sites for things like bot detection.
This sort of thing should also help put the "adblocking is unethical" argument to bed.
> Intellexa also uses malicious ads on third-party platforms to fingerprint visitors and redirect those who match its target profiles to its exploit delivery servers.
-- https://www.malwarebytes.com/blog/news/2025/12/leaks-show-in...
Not blocking ads is bordering a self-destructive behaviour now.
Finally. There are a lot of high profile YouTubers who have been saying this like LinusTechTips.