I block ads because I don’t want my family exposed to scams, clickbait, and offensive content. If ads weren’t so annoying, I wouldn’t put too much effort into blocking them.

Also: Creepy surveillance, and a delivery mechanism for malware/viruses.

Online advertising has completely broken from anything resembling the traditional social-contract of magazine ads, billboard, signs, etc. They're preying on your safety and privacy, not just your attention.

I don’t see many these days thankfully. I Use happily YouTube premium and mostly AI for web browsing-equivalent activities.