So 72 hours have elapsed since I contacted Google about the abrupt suspension of my AdSense account, with no response. I've gone through the logs on the servers that run the three sites I had AdSense ads on, and the statistics are underwhelming. Two of those sites have had a few hundred visits this month combined, and the third isn't much farther ahead. There was nothing suspicious in any of the logs (and remember, I use Google Analytics for all these sites, so they know this as well). I used those ads to defray the cost of hosting those sites. They certainly didn't pay for the hosting -- those sites have always run in the red. But it's all small potatoes.
So I started thinking about the whole picture. Since I've done nothing to cause this action, others must have (or Google's got some serious click detection coding issues) -- but how?
Thus, this is a highly effective DoS attack that hits anyone using AdWords directly in the pocketbook -- permanently -- as in "you'll never use Google AdSense ever again, ever".
So much like eBay's feedback system's flaws were shown by the seedy side of humanity in the form of shoddy sellers giving retaliatory feedback, Google's got AdSense problems. Given that AdSense is the financial core of their business, I'd think that they'd want to protect it (and their users) a bit more than this. Oh, and one more thing -- when your account gets disabled, any earnings between your last check (or in my case, my only check) and the time the account is disabled disappear completely. The icing on the cake, so to speak.