How about we eliminate this on mobile devices first
For a while last summer, it seemed like about every tenth link I saw shared on Facebook would take me to a page about having 'won' something. If it was something I really wanted to see, I'd have to go back to it 3 or 4 times before I'd get lucky and avoid it. Since it happened across many sites, most of which were reputable, I figure it had to be ads that were abusing Javascript.
I still see it once in a while, but not nearly as bad. Not sure if Google or whoever sold those ads addressed it with their clients, or Apple made some changes in Safari with iOS 10 that made it more difficult to do, or Facebook somehow cracked down on it. But it still happens once in a while. It shouldn't ever be allowed to!