Bureaucrats are users entrusted with the ability to grant and revoke all local user groups except other bureaucrats. All bureaucrats are usually administrators as well.
Administrators are users that are entrusted in keeping the community running smoothly. They have additional tools to help them with this task, such as (un)deleting pages, (un)protecting pages, (un)blocking users, and (un)banning users from chat. Administrators on this wiki may also grant and revoke the autopatroller, rollback, and chat moderator groups.
Junior Administrators are chosen by bureaucrats to help maintain the wiki's content. They have additional tools to help them with this task and can perform most of the administrator tasks except for (un)blocking users. Junior Administrators can also change the wiki's theme and MediaWiki pages.
Chat Moderators are chosen by administrators to help them moderate the wiki chatroom and/or the Discord server. They can kick and/or ban misbehaving users on both the on-site chatroom and the Discord server.