Congrats on the move. For the record, I have no idea when or where I subscribed to your feed, but I've enjoyed the photos nonetheless. I just looked and I think I was one of the non-Feedburner subscribers.
Sorry for the comment on an old post, but Robert you should know this one already. Raymond does employ some automated posting. I remember looking at his queue of future posts when I worked at Microsoft. For one, it allows him to post regularly when he is away. My guess is this system skews the count.