Not only that, but the way they have it set up, one of my LJ friends could comment on one of my friends-locked LJ entries and then repost that comment to Facebook, which I feel strongly is a violation of my privacy. I realize the words are someone else's, but the locked-entry is mine, and there are still questions, from what I understand, about what actual content is posted to Twitter or Facebook.

My understanding is that it will link to the flocked entry but unless your on the flist, you can't access the actual locked entry. HOWEVER, if the the fb posted comment includes any quoting of your flocked post (as I quoted in this one), then THAT will be readable.

It doesn't really auto opt you in...unless the accts are already connected, I think. I haven't connected my fb/twitter to my LJ and it won't let me click in the radio boxes for the repost settings (which is why it skips it when I hit tab to post! *lol*) I dunno. Stupid LJ is stupid. Par for the course!