Nobody has called this a success, but it is definitely an improvement.
Lol, is that a fact? I guess you missed the title of the thread, and most of the celebratory posts that followed? Said thread title here:
Breaking: “Top kill” worked !! (BP Engineers succeed in stopping oil flow in Gulf of Mexico)
I'm afraid, understandably, that everyone wanted it to be true, so not many searched for new information, beyond what had been available since early this morning.
I think we're all still waiting for some more recent information, and maybe there will be good news.