I just got this email from my friends at Stack Exchange:
We haven't seen you around Server Fault for a while.
We'd love to reconnect with you; attached below is a sample newsletter of a few recent interesting questions from the site.
See all Stack Exchange newsletters
If you are interested, you can subscribe to receive this newsletter weekly, or others like it. If not, no worries, we won't bug you again – promise!
Your friends at Stack Exchange
Top new questions this week
[lots of questions]
Can you answer these?
When I first entered my email address on ServerFault, I was under the impression that it would be used for extraordinary circumstances, e.g. if a moderator needed to contact me or there had been a security breach. Using my email address just to get me thinking about your site was not expected from an otherwise ethical company.
I know that it says you won't bug me again, but you shouldn't have bugged me at all. Please don't send me any more mass email that I haven't asked for.
Edited to add: The account linked in the email was my 8-rep unregistered user who asked a single question in October 2010. It's not OK to bug the little users either!