The other day we asked, Should We Worry About Bots Inflating Google AdSense Impressions?
AdSenseAdvisor has checked this issue out with the AdSense engineers and confirmed Google is aware of these types of bots.
I've conferred with our tech specialists and engineers and they assure me that our system is already aware of the bots from sites like Ask.com and Snap.com, including those that take screenshots. We're also constantly on the lookout for new sites and services that might inflate AdSense reports, so rest assured that your reports are safe and accurate.
Good to know AdSense is on top of these bots.
Forum discussion continued at WebmasterWorld.