> 2) The reply-to header is wrong (replies aren't directed back to the list
>     but to individual people)

Hi,

A mailing list does not have to alter a message in any way. It should not
alter the reply-to address. Just imagine you want to send an email to the
list but want the reply go to a specific email address. If the mailing
list alter the reply-to field, it becomes impossible.

But you can still use the reply-all functionnality, Mailman is smart
enought not to send your reply to a member whose email is already in the
to field.

I suggest that you read this article, it is written in a better English
than mine and it could explain you why this behaviour exists :
http://www.unicom.com/pw/reply-to-harmful.html

I am not neither admin of the codalist, nor involved in the coda team, I
am just a user an admin of other mailing lists and I can tell you that the
way codalist work is the good one.

I hope that my user point of view answered your question.

Francois