I haven't tried it, but according to the REFCARD
GET listname <(options> Get a copy of a list in a form
suitable for editing and storing
list and lock it
GLobal -> Forward request to all peers
HEADer -> Send just the header; on the
way back, only the header
will be updated
NOLock -> Do not lock the list
OLD -> Recover the "old" copy of the
list (before the last PUT)
http://www.lsoft.com/manuals/1.8d/sitemgr/appenda.html
Then compare and contrast.
I believe the latest version of LISTSERV can separates listmangement roles between owner and list configurator