At 12:06 07/29/2002 Monday, Paul Russell wrote:
 >Prior to the implementation of the superlist-sublist feature, we tried to
 >achieve similar functionality by subscribing lists to other lists, however,
 >we encountered all of the problems outlined in Pete Weiss' reply, and
 >several others which he did not mention. The superlist-sublist feature will
 >not eliminate all of the social problems, but it will eliminate most of the
 >technical problems.

One other consideration:  sub lists can only be added by a listserv-maintainer.