This seems to have been public for quite a while. It's also how Userify.com imports public keys from Github.com for years (and also imports from Gitlab.com, whi

This seems to have been public for quite a while. It's also how Userify.com imports public keys from Github.com for years (and also imports from Gitlab.com, which copied Github's approach.) For some reason, Userify itself doesn't also allow easy export of its users' public keys.