You can "friend" someone on Kloak without meeting them f2f.

I thought the only way to "friend" someone on Kloak was to meet and scan each others' phones. But Egnor played with the app enough to figure out it's got UI to use other means, e.g., email.

That's not a good choice if you're trying to keep your updates away from nation-states who might have hacked into your friend's email. But if you're just trying to keep your updates away from the folks running the social network itself, email's good enough. I'm imagining a world in which FaceBook doesn't annually do something to make you regret giving them so much information. It's a pleasant dream.