Microsoft’s Opt-Out Policy

Just received from Microsoft: an e-mail with the following opening line:
As part of a routine data inspection we have noticed you have elected to stop receiving communications from Microsoft.
As Microsoft launches exciting new solutions and initiatives, there’s no better time to register for information that will give your business a critical technological advantage. We invite you to consider receiving communications from us again.
For the love of God. No.
Sadly when I said “I don’t want you to contact me”, that translated for Microsoft to “I don’t want you to contact me for the moment, but I’m easily influenced by circular e-mails from global corporations so if you pester me enough I might sign-up again”.
The other immediate concern is privacy. Fortunately I know they’ll have just written a script to grab the data for all the people who have opted out and then sent a batch e-mail. But a “routine data inspection”? Sounds slightly paranoia-inducing.
I’m pretty sure this tactic won’t be exclusive to Microsoft, but haven’t come across anyone else using it yet. Any other companies who send daft e-mails like this one?