Let's look at some examples of combinations of the extremes of the dimensions of UX & Privacy, described in the previous posting:
This is a tricky combination. It is difficult to create something that engenders a high perception of trust around privacy and security, while product experience is poor. With a poor user experience these situations tend to self-select out. Product experiences that put privacy and security above all else are good candidates. One example is PGP, signed encrypted email, requiring the exchange of encryption keys. Since OpenPGP is often a user-level responsibility, it is rarely adopted by users (though it has been by ISP's), since the user experience generated is intrusive.