superuser

 superuser  is a privileged user on a site (typically a silo, like Foursquare) that has some admin abilities, sometimes different based on what "level" of superuser the user has been granted or has achieved.

Why
Consider implementing superusers on your site so you can delegate some amount of admin or moderation to others.

How
TBD. See existing examples below and add some brainstorming.

IndieWeb Examples
None currently

Foursquare
Foursquare / Swarm has super users, Level 1 through 3 (at least)

More info:
 * https://support.foursquare.com/hc/en-us/articles/201066260-Superusers-SUs-
 * https://foursquare.com/legal/superuserterms

On 2016-11-18 sometime (mid-day EST) Foursquare reset all SU3 passwords for security reasons. No specifics were provided.