So I went to bump my ad in GM:W, which was posted about a week and 20 minutes previos, and it didn't bump.  I was composing an email in another window, so I didn't see if it gave the usual message about not bumping, but in any case, it's been more than a week.

  The last bumping message was Sat Oct 15, 11:58, and the latest message was Sat, Oct, 22, 12:18.  There were messages between the two (which weren't bumping), and of course there's the site revamp, so I'm not sure entirely what contributed.
This message was last edited by the user at 17:26, Sat 22 Oct 2011.

Meh, tried again just now and it worked.  Guess it was just a misfire.