I, and I believe many people backup their setting on GitHub or other git hosts (may be private). And that way also benefits from having version control for settings.
What would be the expected solution in your imagination?
- Do your machine have git installed? Do you against install git? Should ST bundled with git?
- Should ST implement account management and backup on SublimeHQ’s infra? (I don’t think this will happen)
- Or what?
Honestly, I don’t think syncing is more important than Package Control, which is not builtin.