This is required by RFC by any sort of subscription based list. ->snip<- My understanding is that ALL messages on ALL lists will be required to have a tagline giving UNSUBSCRIBE instructions. That will cause all kinds of unpleasant noise from newsgroup readers, none of which will be kind to rootsweb.com. Even if those footers are inserted on the mailing list side only, replies to those list-side messages will get to the newsgroup with the footers included as part of the replied-to message.