SevenCubed - 2:34 pm on Mar 19, 2013 (gmt 0)
I get credits back *every month* as an advertiser.
Adsense TOS probably don't allow you to discuss particular details publicly. However, it would be more helpful for understanding the scope of clawback if advertisers could state refund as a percentage of spend. Then publishers can make a comparison to find out if the clawbacks vs refunds are in proportion. My guess is that there would be a larger than normal gap between the two. A sort of administration fee for all the, uh hassle.