I was going through some of the “Leaning Pro-Privacy” article links with my students. When I clicked on the “Politico: We Are All Big Brother Now” klink, this popped up:
Hi @eric.howe,
Since ad blockers have become pretty popular, many websites now try to test whether an ad blocker is installed and if so - displays a message like you demonstrated.
I did a quick Google search for how a site even knows you’re using an ad blocker https://clearcode.cc/blog/detect-ad-blockers/ .
Frank