Administrators or Admins are people who are responsible for running the community. Monitoring control over the entire community is the foundation of their responsibilities. Of course this implies various things such as setting and modifying rules, making sure conversations are relevant and moderated, assign jobs or roles to members, create and observe channels (see Channel), among many other things.
Admins are also responsible for making announcements, organising and coordinating events, sharing resources, responding to concerns and tending to them, and in general have entire control over how the community functions as a whole.
The long-term goal of administrators is to help build a thriving community of people and foster healthy relationships and discussions.