A day after I posted the last update in this sorry saga, Google deigned to communicate with me:
This is obviously a form email, and has nothing of substance -- like an actual reason for the account suspension. Also, under the same account name, I'm a Google advertiser with AdWords. Apparently, I pose a significant risk to myself as well. Also, Google has been very keen on charging me for the AdWords ads, and has taken the money my sites earned before my account suspension. Talk about getting hit coming and going.
Thanks for providing us with additional information. However, after
thoroughly reviewing your account data and taking your feedback into
consideration, we've re-confirmed that your account poses a significant
risk to our advertisers. For this reason, we're unable to reinstate your
account. Thank you for your understanding.
As a reminder, if you have any questions about your account or the actions
we've taken, please do not reply to this email. You can find more
information by visiting
The Google AdSense Team