You're all over this thread spreading misinformation. AdNauseam has been around since 2014. It is specifically banned in the Chrome store so Google knows of it's existence. If you check the wikipedia page you'll see that they have landed in the press and taken multiple actions against the extension. https://en.wikipedia.org/wiki/AdNauseam

Usually when it's brought up people say it doesn't work or try to spread fear that it is illegal. Google banning them but taking no action otherwise indicates to me and the thousands who use it that it is in fact effective and Google has no other recourse other than their control over the most popular browser.