Guys, do you actually think its Craig responding?
Similarly, when emailing Tim, do you think its him responding?
These guys are far too busy to be sitting at a desk checking the thousands of public facing emails they must receive, or even respond to them. It's most likely a dedicated team that filters through emails, responding where a response is required, and sending anything of more major importance to the correct teams. I very much doubt Craig or Tim are sitting at a desk responding to public emails when they have thousands of employees under them.