I think the reputation required to edit questions on SE betas should be massively lowered. Right now it almost seems like it's been overlooked; retagging and close voting were both dropped to 1, while editing remains at 2000 for private beta, 1000 for public beta
It's going to take users a minimum of two weeks to hit 2000, and past betas have shown that a massive number of questions get asked when the private beta starts at 0 days and when the public beta starts at 7 days. There are hundreds of new questions just on those two days, plus the early questions tend to define the style of the site, and nobody can edit them until weeks after they've been posted