reply-all should be discouraged

[Fred Bone]

On 21 February 2010 at 11:18, cognitive.libertarian+ml at gmail.com said:

> * Derek Atkins <warlord at MIT.EDU> [2010-02-20 18:23]:
> > >> > Please remember to CC this list on all your replies.
> > >> > You can do this by using Reply-To-List or Reply-All.
> > >
> > > Please don't encourage use of "reply all".  Everyone who posts is
> > > inherently on the list, and gets the message.  We don't need a
> > > duplicate.  
> > 
> > Nope, everyone who posts is *NOT* inherently on the list, so they do NOT
> > inherently get the message.  There's this concept called "moderation"
> > where you can go through and manually allow messages through to the list
> > for those who were not subscribed..  We encourage anyone and everyone to
> > ask questions here, even if they are not subscribed.
> 
> That's fair enough, but it doesn't justify sending dupes to
> subscribers on a regular basis, without their request.  If someone
> needs a personal copy of responses because they don't have access to
> the list replies, they can request it specifically because it's an
> exceptional case.  That's the regular practice on mailing lists to
> reduce the problems imposed on subscribers.
> 
> The proper way for someone to request personal copies simply to
> include the header "Mail-Followup-To: gnucash-user at gnucash.org, [their
> personal address]".

"Proper"? Please cite the RFC that standardises this. AFAIK it only ever 
made it to Internet-Draft status.