half a decade of community knowledge gone

The archive of the xml@gnome.org and xslt@gnome.org are gone, I have no idea what happened, I didn't got a mail about it, just that going to the archives show all history is only the 4 last days. The only thing I have left right now are the words saved in the database used for the search engine on xmlsoft.org. The code is here, but the knowledge, the exchanges, all the process leading to it has vanished, I just can't express how sad this makes me...

[update] Apparently it was an indexing problem which should be relatively easy to fix and without serious effects. The post are still on-line and I now keep separate archives for more safety, the data is safe. To me OSS development is really about the process, i.e. the history, knowledge, feedback, the memory of that shared process is as important as the code itself. With that knowledge you can recreate the code, if you have just the code you miss out a large part of its semantic, and it can't be regenerated. That's why I don't believe in dumping large base of source code under a free licence can really compare to code coming from a genuine OSS/free software project.