You do know that this is not a "web problem". Just spend 10 minutes with your average 13yr old and see how many times they get bombed in the face with one of those interstitial ads.

Also it is easier to root your phone with a malicious app than with a web page. Heck, if you are an app developer why even bother to root phones when you can just do whatever you want, after all if the user does not give you all-in permissions you won't even let the app run.