Pages on WikiFur may be protected for various reasons. There is usually a good reason for such protection, often persistent vandalism (or the threat of such). There are a variety of protection templates used for the purpose of noting protection, and you can see a list of pages with these templates on. Relatively few pages are protected, as changes can usually be reverted.
WikiFur also has a policy on personal information that sometimes leads to page protection. In some cases pages are protected but rendered editable by one non-administrator through the use of a template on their user page.