I’ve ruminated recently on the fallibility of human spamcheckers when dealing with spam-like non-spam email. When I read "role" email for Canonical (e.g., info@canonical.com, support@ubuntu.com), I need to be particularly careful about this because I routinely have people contacting me legitimately about my finances, East African partnerships and the like.
It’s at those moments when I resist the temptation to mark a message at spam and find a legitimate mail behind a suspicious sender and subject that I thank $GOD I’m not in the legitimate penis enlargement pill business.