They call it “dark traffic” - ads that are not seen by tech-savvy users who have excellent ad blockers.
Not surprised that its growing. The web is unusable without an ad blocker and its only getting worse, and will continue to get worse every month.
My view is that if we can’t have the things we want without ads, then we need a new business model. I’m not super into the whole kindness and donations model. If we need it to be state funded, so be it.