..If you're accepting nominations for your free time...
No free time now, but hopefully soon. Always open to
new ideas.
There is an Internet-Draft out standardizing how one includes
suggested header values in the context of a mailto: URL.
For continuous discussion threading, it will be very valuable to
have the mailto's built by MHonArc contain appropriate subject
and in-reply-to header nominations packaged in conformance to the
new standard.
Check the MAILTOURL resource. Maybe you can support the
draft by changing the value of the MAILTOURL resource.
--ewh