[mrkstu]

Not that simple. Just ran into it today where I was trying to scroll down a page and couldn't. Why? Because there wasn't anything more further down. In the past the scroll bar would of told me there wasn't anything more, but now I actively have to try (and fail) scrolling to 'discover' the fact that there isn't anything there.

[_aavaa_]

Then if the second you lost by trying and failing to scroll is important leave it on.

But if isn't clear that you have reached the bottom of a website, then that's a problem with the page.