You can now "Connect to Facebook" via the board. New registrants should have this option off the bat, but if you're already here, click on your name, then click on User Settings => the Account tab, and scroll down and click on "Connect to Facebook." Now you can share any post/thread to Facebook, and more.
The level of sharing doesn't matter within does not make a difference, you can set it to "Only Me."
The level of sharing doesn't matter within does not make a difference, you can set it to "Only Me."