I hate to seem ungrateful, but I don’t think you answered my question.
I got an email notification of a new subscriber/follower (the first since I launched the new self-hosted website) that did not show up in my list of followers. I am trying to track down where the error lies – should I be talking to JetPack?
There are no subscribers on my list of users. And I don’t require people to be subscribers to comment. So your advice here doesn’t seem to apply.