What's wrong with "tough love?"

BTW, I assume you could "cheat" and subscribe a universal userid/password (but set it to NOMAIL NOPOST) e.g.,

QUIET ADD listname [log in to unmask] universal signin	
QUIET SET listname NOMAIL NOPOST NOREV FOR [log in to unmask] 

create a password (you may need listserv maintainer involvement)

Then tell every subscriber the sign-on userid / password and when prompted, save it as a cookie when using the WWW interface to search