I've written a blog post about this with further details if anyone is
   interested:
   [1]https://cryptoanarchy.wiki/blog/2018/07/05/the-cypherpunks-mailing-l
   ist-archives-must-be-preserved.html
   The primary reason I'm sending this email is to appeal to those of you
   who have been active on the list since before July 2013 (when the
   switch to GNU Mailman occurred) and to those of you who know
   now-inactive subscribers who may also have this information.
   There is a total black hole in terms of available archived threads from
   early 1999 to mid 2013. I've contacted the guy who ran the
   [2]al-qaeda.net node and dug around in the way back machine trying to
   locate these archives. No luck so far.
   I'm worried this information will be lost permanently if a concerted
   effort isn't made to preserve it now, while some of it is perhaps still
   preserved on people's hard drives. I have no doubt that some (maybe
   most) of the threads from the early 2000s may already be lost
   permanently.
   Please get in touch if you think you can help out at all.
   Tom Busby

References

   1. https://cryptoanarchy.wiki/blog/2018/07/05/the-cypherpunks-mailing-list-archives-must-be-preserved.html
   2. http://al-qaeda.net/