What kind of legitimate use case did you image for this feature? Because I am REALLY sick and tired of all the fake malware, "Your system is infected", insane vibrations and redirects to the Google Play store. I have to say that you come off looking pretty ignorant here. How could you possibly not foresee this? What did you do? Sit with your friends on the W3C group and say, "We don't feel that pop-ups are abusive enough these days, since many users have learned to block them. We must give malware authors another usable attack vector." You, and anyone else on that group that did not immediately see this as the WORST IDEA EVER should leave the committee, and the internet, forever.