Have Google ever stated (or strongly hinted) that they use the Adwords conversion data to monitor Adsense accounts?
Most Adwords advertisers (the source of Adsense adverts) track conversions. Therefore Google obviously knows which Adsense accounts are converting and which aren't.
Would Google ban an account for low conversions? In my gut, the answer seems obvious to me - "yes!" But my gut doesn't always track Google's actions so well.
Have Google ever stated that they do this? And if so, what does it come under if you've been banned? Invalid clicks? Or would Google be less specific about it e.g. "we think you're a risk, so we've disable your account".