I used the bookmarklet, and it's plausible that I was, at the time, viewing the blog root page (as linked here) rather than drilling down to the permalink. So

I used the bookmarklet, and it's plausible that I was, at the time, viewing the blog root page (as linked here) rather than drilling down to the permalink. So it's likely to have been my mistake. Edit: I've emailed the mods. Edit2: It's been fixed.