BB producers are ultimately ALSO responsible even if Farrah DID escalate.
That's the point. They took a person they KNEW to be unstable and goaded her. That doesn't exonerate her, but it in a way multiplies the guilt and distributes it across several parties rather than divides it in any way.
The culture that supports BB is in a way sick. And I don't mean TGBP when I say "culture", I mean the way reality shows like this are run, and the "it's only entertainment" excuses made for it. It's not UK specific in any way, since many shows in other countries also let things go too far as well, but BB is a big shining example hanging out there of reality TV run amuck. It's probably time for the show to be put in the ground and buried, like the shameful thing it is.