It's becoming increasingly common to have all sorts of pop-ups blocking a big part of the screen at best or adding an overlay across the entire body.
If only I knew that my click would result in that kind of monstrosity I wouldn't have clicked in the first place. So maybe it would be more useful to show an of how many things we need to close before we get to the content. I think that something like this would also help get us to "a faster web".