You get pinning... and absolutely no verification the first time you connect, so anyone who got lucky enough to MitM you the first time (or first time since you

You get pinning... and absolutely no verification the first time you connect, so anyone who got lucky enough to MitM you the first time (or first time since you deleted your known_hosts file or reinstalled your operating system or switched computers) can log in as you, without having to compromise any PKI. Meh.