I'd also echo the concerns of others about GitHub.
Proper archivists should do for SourceForge what they did for other projects. Archive Team, maybe? Looks like they have a wiki page: http://www.archiveteam.org/index.php?title=SourceForge
I'd also echo the concerns of others about GitHub.
Proper archivists should do for SourceForge what they did for other projects. Archive Team, maybe? Looks like they have a wiki page: http://www.archiveteam.org/index.php?title=SourceForge
Right now Xfire's videos, several URL shortners' links, and Toshiba Support material are being archived. If you have spare cycles and bandwidth, and want to contribute, running an instance of the "ArchiveTeam Warrior" is pretty easy through docker or a VM. http://archiveteam.org/index.php?title=Warrior
So the mirrors should just cut the upload write permission for Sourceforge and transfer it over to archive.org or ArchiveTeam.
I think you're taking the right approach by capturing the code and the history. In fact, I think you're going above and beyond what most people should ask for or expect.
http://sourceforge.net/p/forge/documentation/Join%20as%20a%2...
http://sourceforge.net/p/forge/documentation/Mirrors/
I bet at least one techie working at one of those organisations would lend a sympathetic ear to the effort, if you could find them
edit: running 'rsync -r' on a local mirror shows 512,000 directories from a..ju, but only 43k files. Mirroring all the downloads should be easy