No, that's just how it gets when Q posts. There are WAAAAYYYYYY more people that the Unique IDs at the bottom show. Tens of thousands of lurkers. Couple hundred unique posters.
It's the way the page was created. Usually the UIDs are only relevant to the posters in the thread. It's a chan thing.
I've asked BO about seeing if we can get the UIDs of lurkers; it's NOT something simple.
Not page, site. It's the way the site was created.