Maybe I described it in wrong way. Moderators can not see post in the stream when this "user" complete the registration. They can see those posts on homepage and category view, but not in streams. So it looks like that posts that has been published via BFR are exlcluded from streams.
@bfarber ok, I can do it later, but im 99,9% sure that this is not a case of my forum (I tested it on fresh install).