User blog comment:Shahid/Facebook Connect/@comment-1491391-20100707165047

Howdy @Roguefbl, Only edits by Facebook Connected users will be pushed to that user's feed. Even if you edit a page that was also edited by a Facebook Connected user, that edit will not be pushed to your feed unless you are Facebook Connected and have your preferences set to push that event. Anonymous (ie: logged out) users edits are not pushed to Facebook.

If you don't connect your account (or if you connect your account and click the "Never publish to my news feed" preference) then your contributions will not be pushed to Facebook.