Sometimes it is hard to explain why 'open' operating/business models are better than 'closed' models, because the specific advantages are often unknown up front. Dan Gillmor makes a similar comment on the Wikinews initiative.
"But I think they have a lot to work out on how news applies to Wikis -- it's just not clear that it is a natural medium for news. Certainly for breaking news I don't think that Wikinews would be the place to go. But I expect that they're going to come up with some things that we can't anticipate now because they have so many people to work on it."