I'd like to know more about this in particular. I do not believe that any satellite broadcaster doesn't know whether he is broadcasting encrypted or not. Maybe years ago people may have thought that nobody owned the equipment necessary to see their unencrypted stuff, but I find it very hard to believe that this is the case now. If any broadcaster is sending stuff FTa and doesn't realize that it's going to get watched freely by some, then they wont be around long because they are too stupid to remember to not breath when then drink water.
That being said, I don't discuss FTA finds openly out of respect for those who have requested it. MAYBE I would also believe in the purpose behind these requests if I were to be convinced (not by heresay) that this would cause current broadcaster to encrypt.
It was told to me in private, and I am not going to repeat it, nor cite a source.
I subscribe to the theory that it may not be scrambled, but if the programmer sees that their programs are being talked about on 4,943 different websites that detail what you need to receive the signal, then the programmer has to do something. If it isn't widespread and publisized, they ignore us, which is what we want.