There are a few thousand delegates with credentials. But lots more people want to come in and partake in the festivities. Even if it is a "stage-managed event", it's a party for political junkies, and there are lots more of us than most people realize.
So a delegation gets in the building. One person collects all their credentials, walks out the Fleet Center, and returns with a whole new group. Lather. Rinse. Repeat.
So suddenly, there are three times as many "delegates" walking around. And by the time the prime time speeches come around, it's freakin' packed. Last night, the blogger section was so packed with "delegates" that I gave up and went home to watch the Edwards speech from my hotel room.
It's gotten progressively worse every night, and I don't doubt tonight wiill be the craziest of all.
Now I don't think there's anything particularly wrong with this. The more, the merrier. It was just an observation. And tonight, of all nights, I'm not leaving early.