At the main-page it says; "Bureaucrats – ... , giving them permission to assign/revoke user groups"
Is the "assign/revoke user groups" truly only available to Bureaucrats/Sysop?
Or to be more specific, is it potentially possible that an additional user group is setup (by Bureaucrats/Sysop) that can be assigned by an Admin to normal-rights users? (This would be something of an intermediate user group, to potentially give some regular users a bit more features. Like for example the "Mark as patrolled" right.)