>  I do believe that ListServ postmasters should be able to
>make a global delete command, since we are the ones that get the
>errors when a user doesn't exist.
 
What is a LISTSERV postmaster? LISTSERV@A does not know the postmasters
of LISTSERV@B, nor should it have to.
 
>  Maybe it could be changed so ListServ PostMasters could only
>delete the users on their site, or maybe delete only the
>users that don't exist.
 
LISTSERV postmasters can already delete users from their site. How can
LISTSERV@A know that X@B exists or does not exist???
 
  Eric