Having submitted my last post, I do believe that we (RAF) want a Just Culture and that we achieve that at Sqn level and, mostly, higher. I just think that the system is open to those who want to abuse it, usually through ringing up mates and having 'off the record' chats to find out things that they shouldn't. I suspect that was what happened in my earlier example.
So, in response to Bismark, I suspect that the RAF is no better, nor any worse than the RN.