Thus spake "Michael Froomkin - U.Miami School of Law"
Regardless of the specifics of this case, I think a good rule would be to
say that all bounced messages on any IETF list MUST be archived on a
separate 'bounced' list. To whom would this suggestion best be directed?
1. Many WG lists themselves aren't archived, but you want to force bounced
messages to be? Are you ready to pay for this?
2. The volume of spam in a bounced-messages archive would quickly change
3. All of this would be easily solved by someone (e.g. IETF secretariat)
providing list service for all WGs with a consistent policy.