Consider all the data that's used to provide the value-added features on top of git. Issue tracking, wikis, notes in commits, lists of forks, pull requests, access controls, hooks, other configuration, etc.
Great question! But I did not understand this comment at the end: "I'd give git-ssb, which stores issues etc as ssb messages, a pass on this, for example."
Does "pass" mean "they pass", they're ok on that? Or "I'll pass", not use them?
@bhaugen woah sorry for the ambiguity, I mean a green check mark :) Correcting now