Well the main basis of the completed site is made by the 10 or so admins/super users, and the uncompleted half is built mostly by anonymous users just passing through. On occassion we get a good edit by an anonymous user, but would it be so damn hard to make a user name if you are dedicated enough to help out?
Anonymous users cannot upload images, so they can't complete pages properly. There editing is limited to minor text, so they can barely help our needs. They aren't a necessity to the site, and anyone who is can just log in.
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