Reading that line I just realized that google lost me as a YouTube viewer in the past two weeks. I used to follow a bunch of ~100k subscriber channels that produced content every couple of weeks on building things and how to build things. I'd generally watch one or two 10-30 minute videos a day.
They've cranked the ads through the roof to the point that I'd see the same 6 second Liberty Mutual bit three times before the video even got through its introduction along with a couple other ads.
I now realize its been days since I even went to the site. So I guess for this n=1 we've found the limit.