Just 2 years ago there was a massive backlash against KISSmetrics, Hulu and a few others for using this very trick. Can't find the HN story now, but it was a r

Just 2 years ago there was a massive backlash against KISSmetrics, Hulu and a few others for using this very trick. Can't find the HN story now, but it was a recurring story for a few days as people argued back and forth whether it was ethical.