I'm not entirely sure about how it works. Can ANYONE cross-post their comments at all given their friend have friends-locked their entry and DISABLED cross-posting? That defeats the purpose of friends-locked entries and invade the privacy of the other person, doesn't it? Or was it just cross-posting comments and not revealing which entry they were responding to? :\

I'm never ever going to use the cross-posting feature on LJ, anyway. I hate Facebook, deactivated it and never ever going to use it, not to mention my Twitter account is locked and I follow less than 10 people.