has anyone seen this 'unrankable' PR showing up? first time it caught my eye was late last week, and i'm seeing it again today. 'unranked' is still on sites as well, so it's not just a new/replacement term. from what i can tell, it's only showing up on the most recent versions of FF (3.5), and not older ones (2.0), so it definitely could be strictly limited to the FF updates.
i'm not as curious why it's only showing up in one version vs another, but mainly why it's showing up at all, and what it means looking forward. i'm struggling to find any info online about it.