I have realized that there’s no uncumbersome way to post chapter updates. My original plan was to post updates as blog posts, while adding them as well to the main Review post for the permanent record. That way readers wouldn’t have to constantly scroll down the main article looking for the most recent update.
One minute of reflection, however, raises the issue of comments, should anyone wish to make any. People would have to only make comments to the main piece, which raises the very issue I was trying to avoid. So I guess I’ll keep the first chapter review in Reviews, so people later can find it there, and then just use hyperlinks to connect the 14 (!) remaining blog posts.
Unless anyone else has a better idea.