Hi Alejandro, I really like the GNU mailing list archives because they are available in mbox format:
https://lists.gnu.org/archive/mbox/groff/ so I can have local copies, find stuff with mutt search patterns, index with maildir utils, copy a single mail or a thread as an attachement to my notes system, … this is way more powerful than any web archive because it can part of personnal workflows. regards, Marc -- Marc Chantreux