Originally Posted by
stifle
It happens to me too. I think it occurs when a post is hidden either by moderators or automatically (because they're a new user) and if it were displayed, it would make the new page.
A bug, in other words.
Well, its not a bug, but a feature
Yes, you're on the right track there... if there is a post that is hidden (for a plethora of reasons), the page count goes out of whack for public users.