It'd be obvious on the ads side though - If this was activated across multiple apps simultaneously, their clickthrough rate would have gone through the roof. H

It'd be obvious on the ads side though - If this was activated across multiple apps simultaneously, their clickthrough rate would have gone through the roof. Heck, even if it was dripped out slowly, average % clickthrough - even on mobile where ads get fat fingered more often - is a tiny fraction of views. They would have been reporting some pretty crazy numbers. No way in the world this wasn't easily spotted, when clickfraud is already a well known thing and Google are in the business of tracking things to sell more ads.