Allow the primary ArcGIS Server administrator to specify other people to be sub-administrators that would allow them to create/edit/delete their own services, locking them down to only their services so that they cannot accidently modify or delete other services. This would be very similar to what is done with enterprise databases.
This idea has been merged with Allow advanced ArcGIS Server Manager permissions based on login type..
This would allow an enterprise, such as a state agency, to grant to other agencies a modified administrative access which in turn would allow those other agencies to manage their own services. This would greatly simplify the administration and licensing of enterprise GIS for the enterprise and for Esri. Addtional licenses would continue to be purchased to accomodate the extra users and load.