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by fsck--off 4643 days ago
> Back in 1983 online collaboration was unheard of

Not really. Stallman mentioned Chaosnet which the AI Lab had used for, among other things, internal mail (not yet called "e-mails") between developers about changes to programs. He also mentions UUCP, which was the godawful Unix way of sharing files (and which could be used for mail purposes).