The blog links to a screenshot of the email - http://i.imgur.com/wWyNd.png http://i.imgur.com/wWyNd.png - which says the personal site was guitarhero-5.com. But

The blog links to a screenshot of the email - http://i.imgur.com/wWyNd.png http://i.imgur.com/wWyNd.png - which says the personal site was guitarhero-5.com. But even if that is related to this somehow, they said "your AdSense account remains in good standing and any actions taken on this domain do not affect the performance of your other AdSense ads."