Quote by Mark Guzdial:
Any page can be edited by anyone. While that seems dangerous, and can be very dangerous, it is also amazingly powerful. No structure, no protocols, no standards. Just edit and write. The amazing thing is that it usually works. It turns out that we all know quite a bit about writing and talking together. We tend not to mess up one another's space, we tend not to talk trash, and we tend to try to contribute. I guess it is the same reason that we don't generally go walking around writing on all available walls.