The Unicorn Quest Wiki:Staff

Different users have access to different functions of the site. While anyone can do most things on the site, including reading and editing, administrators, or sysops, can access a few additional functions.

Bureaucrats
Bureaucrats have the ability to promote users into bureaucrats, administrators, Content Moderators, Discussions Moderators and rollbacks, as well as revoke administrators, Content Moderators, Discussions Moderator and rollback rights. They can also block and unblock people.

Administrators
Administrators have the ability to delete and undelete pages, lock (protect) pages so that only users with administrator rights or autoconfirmed status could edit it, block and unblock users, edit the wiki's skin and format and also have all the privileges of Content Moderators and Discussions Moderator.

Content Moderators
Content Moderators have the ability to edit and move full protected pages and files, delete and undelete pages and files, do a quick "rollback" to undo edits not made in good faith.

Discussions Moderator
Discussions Moderators, or Thread Moderators, have the ability to remove and restore threads and replies by any user, close and reopen replies, manage Discussions categories, move posts from one category to another, deleting blog comments, editing and deleting article comments and moderate the Discussions feature.

Rollbacks
Rollbacks can do a quick "rollback" to revert edits not made in good faith.