What is the community mailbox (email@example.com) for and what happens to messages that are sent to it?
Additionally, on some closed questions that have lots of views, I see the following message in the revision history just when the question is closed:
occurred sometime (right justified in actual)
A notice was sent to firstname.lastname@example.org about a popular question being closed.
What is the criteria for a question being "popular" enough for such a message to be sent?