NomadMan - 7:28 am on May 12, 2012 (gmt 0)
I wonder if that's not up to the job and is getting swamped, possibly even dropping messages (ie clicks).
My Adsense observation based on what i see here and on different boards;
With the massive amounts of clicks required to make a few billions a year - added with the 2012 strict click and traffic validation - Adsense server architecture is everything...
My impression is that 'no click days' move around batches of small & midsize earners / publishers. Server architecture for the small & mid earners might not be up to the job. The processing power needed to serve this group must be apocalyptic compared to the big earners.
Big earners most likely have their own server to cope with a very profitable click rate of ### / second. Much easier, click / traffic validation is more relaxed. It secures a large part of Google's revenue.
So i would not be surprised AT ALL - if clicks are dropped during massive click tsnumai's in the small / mid earner group. I'd say they work with an "acceptable % of click loss".