I'll add my anecdotal data point to yours. The experience has deteriorated to the point that I am afraid to click on anything on a site that has a lot of advert

I'll add my anecdotal data point to yours. The experience has deteriorated to the point that I am afraid to click on anything on a site that has a lot of adverts. Or at least I wait quite a bit to wait for the layout to stabilize. I do move on often if it is too annoying.