Informative and helpful! It's a shame the website owner's success (being profiled on a national radio program) actually led to the suspension of his account because of the spike in ad clicks. Being persistent and patient, plus the hard evidence, got the account restored.
I read a similar experience online with someone's Sedo account in which it was closed and they were denied payment because of extreme fluctuation from day to day in the amount of clicks. That person ultimately moved their domains to a different parking company.
Google doesn't have any reasonable competition, except YPN, which is still in beta (I think), only available to US members, and difficult to get accepted, while Sedo has serious competitors, who are at least as good, and as easy to get accepted to, therefore getting cancelled by Google is a far more serious issue.