A wiki's founder is automatically given admin and bureaucrat rights during wiki creation. This allows them to edit the wiki's skin and format. As more contributors join, it's a good idea for bureaucrats to appoint trusted users as admins. The title of founder appears next to the founder's name even if they later abdicate their position as bureaucrat or administrator, and it overrides those titles.
Bureaucrats are one level up from administrators but have none of the administrator privileges. Bureaucrats only have the ability to manipulate users rights. They have the ability to promote and revoke rollback, chat moderator and administrator rights as well as appointing new bureaucrats. While they cannot directly revoke another user's bureaucrat status, they can revoke their own. Bureaucrats also have the ability to revoke a user's bot status in case the bot is malfunctioning, but community consensus is required for the addition of users's bot status.
Administrators (or "admins" or "sysop") are trusted users, who are generally chosen by the community and also have access to the following tools:
- they have all privileges from the chat moderator and rollback groups and also have the ability to:
- delete and undelete pages, as well as delete images or files (it is not possible to undelete images or files).
- lock (protect) a page so it cannot be edited or renamed by users without adminship privileges.
- block users who are vandalizing the wiki from editing, etc.
- grant and revoke chat moderator rights.
- edit the wiki's skin and format.
- edit MediaWiki pages.
Chat moderators are users who have chat moderator status in chat in order to moderate a wiki's chat room. They are able to block users from chat, which will kick a user out of the chat and ban them from returning until a chat moderator or an admin removes "Banned from chat.