>useless ads

If the ads were useless, advertisers would not pay for them to exist.

>without better ad blocks in mv3

MV3 adblockers were built before MV2 was deprecated.

Just for your info classic ublock style doesn't work on mv3. Google have severely limited adblocking in chrome now. They deprecated very late due to pressure from people, not out of goodwill.

Useless to users, not to advertisers. And, many people like me have never purchased any products after seeing ads at least on internet.