I can totally understand why LJ decided to make this change, since it opens LJ up into the two major forces in the social networking scene right now. Certainly comm's that are very open and love new members, open discussion, etc, will make great use of this feature. As will folks writing here on LJ who are not doing stuff that's considered private.

Also I'd imagine that when commenting directly to a flocked entry in a community, one cannot crosspost it on FB. With that being said, one is still able to crosspost a comment to another comment, even if the entry they are commenting on is flocked -- but bear in mind, the only thing that would appear on the crosspost person's FB is his/her own words, nothing from the upstream (or downstream) would be visible.

I may try some tests over on trueblood_tv. We don't have anything to hide, but we can figure out what is up and then we will know for sure. I am also hoping what you're saying above is true -- but, what about the subject line of the f-locked post? Doesn't that show up on FB, if nothing else? Sometimes even that is TOO MUCH, know what I mean?