1998
Google engineers want to make ad-blocking (near) impossible
(stackdiary.com)
This is a most excellent place for technology news and articles.
It's not just that there are people thinking about it, it's that this is what our brightest minds in our society are incentivized to think about.
There is a joke in tech circles - if you are smart enough you eventually end up in ad tech. It's really unhealthy for our society.