One question is whether the browbeating of slackers and rousting of laggards has to happen in public. On the one hand, it can be effective if the folks who are behind are regular followers of the forum and it makes it look like the organizer is doing something, but on the other hand, sometimes the people holding things up are out of touch temporarily, and making it a public issue can put a damper on the tone of discussion. There's a reason that all of the Traveling Portfolio participants have to send their real names, addresses, and phone numbers, and I have called people on occasion, when the Portfolio has gone missing, but sometimes things just take time.
The f32.net portfolio (is that going to become the acutance.net portfolio?) is smaller than APUGs, and it seems to take longer to make the rounds (it is more international, though, on the other hand).