First I thought my toolbar was messed up at work, but even at home every single (new) thread on DP shows a PR3. Even this thread. Haven't seen it on any other site... weird.
It is because all threads are shown through the same page - showthread.php which confuses the toolbar.
OK checked some another site and it was doing it too. Has it always been like that? I hadn't noticed it ever until last week.
Yeah I've seen it for quite some time (years). It happens mostly on forums though because most forum software shows threads through a single php page.
Yes David .. it always did this. It's because of the parameters in the URL.. If the URLs were static, you would've not seen any abnormal PR.
Maybe you guys should be using a more accurate PageRank measurement tool. The ones Google makes aren't that good. hehe (kidding.. sorta): http://www.digitalpoint.com/tools/pagerank-mac/