You can't hide wall to wall communication from people any more unless you hit remove after you post it:

Whether we display a story on your profile is now controlled by the privacy of the content itself, rather than an additional setting. For example, only people who can see both your Wall, and the Wall to which you posted would be able to see a story about you writing on a friend’s Wall. You cannot completely turn off recent activity stories anymore. However, if you want to remove a particular story that currently shows up, simply click the “Remove” button that appears to the right of the story after you move your mouse over it. Learn more about privacy here.
I used to have it so that my posts wouldn't show up in the news feed but now they do. It's annoying and a bit stalker-ish in my opinion. I miss the 2006 FB.
Turtles: omg please don't put that in your moo moo

Nej: too late... moo moo has been infiltrated.