Another thing that may be interesting is to suggest the person who
made the original post to, when a solution to his problem is found,
finish the discussion with a last post adding something like [SOLVED]
to the subject line, and indicating /what/ exactly solved the problem.
That should help the readers to know the problem was finally solved
without even having to read the messages; helps the monthly
statistics; helps *a lot* when searching the archives later.
I think a monthly mail reminder would be good.
Also, it could be kept in a web page, and a link to this page added in
the bottom of the messages, together with the "Fedora-list" things.
Excellent idea!