>P.S. If the list is defined to have "notebooks", and these archives
>     are searchable by subscribers, then any user who posts to the list
>     is "exposing" his/her ID to all the subscribers.  A non-ethical
>subscriber
>     can easily extract all the 'FROM:' lines, and generate a mailing-list.
 
Or just hang out on the list and collect FROM: fields from the
"outspoken" (and possible even concealed) users.  No notebooks
necessary.
 
/P