Can you add the To: and Cc: headers to the list of headers that eventually end up in the 'Downloadable version' of the archives linked below. Along with the already included Messsage-ID, In-Reply-To, and References... that should make those versions more fully threadable, sortable and searchable by MUA's and provide more understandable participant context. Thanks.
https://cpunks.org/pipermail/cypherpunks/