There has got to be a "laffer curve" for "attention tax" revenue.

Wouldn't mind enough, to be clear.

And I think you're giving too much magical credit to FAANGs, they measure things the same way as everyone else. It could very well be that this was a relatively innocuous test to see how much users would mind more in the future.

"We figure we can fill up to 80% of the user's field of view with ads before inducing seizures" was a very apt description of such discussions (Ready Player One the movie)