I might sound dismissive, but in my views Keybase is entirely focused on being an identity provider; all the other tools they've been developing on the side are

I might sound dismissive, but in my views Keybase is entirely focused on being an identity provider; all the other tools they've been developing on the side are nice to play with and will probably be the ones bringing in money to them, but at the core they're not really reinventing the wheel, and wouldn't have any value without the powerful and simple-as-dirt reliable identification platform they provide. I might be completely off but I'm sure their dream would be that any new protocol would care about the exchange of data, and leave authentication and identity checking to them.