I ran across this technique on a couple of sites last week when going for the back button (no idea if they were ExitIntent users). I thought it was a neat idea

I ran across this technique on a couple of sites last week when going for the back button (no idea if they were ExitIntent users). I thought it was a neat idea, and I stopped and played with the effect for a couple of minutes, testing its behavior. I may not remember the sites that did this, but it did make me pause and look at the popup as my pointer left the page.