I have a fairly unique last name, which is in my email address.

So far two dead relatives that never really used the internet have been "marketing matched" to my email address. So I get spam for my deceased grandmother and uncle. Its a little jarring. I'm not sure what kind of matching they do but clearly its not working.

Plus isn't the point of using a service being able to decide to match it with twitter, Facebook or just not link to those things.