In my room, I have complete control, and I am watching my show in real time.
Bad lighting? No problem, I'm the lighting person.
Crappy song? I'm the DJ.
I don't feel well? I can leave.
I may ham it up on cam, but believe me, when I sign off I'm the most boring person ever. Why would I want to show everyone that? It takes a lot of energy to be on cam and act comfortable in front of the camera.
Privacy isn't a concern to me because I'm "out" but then there is also the consideration that I don't have control over how they make me look. A lot of people who do expose's on the adult industry paint it in a very bad light. Regardless of how I view myself, or others view me, it would be incredibly easy to slander my character and turn me into a pathetic stereotype with some bias and editing.
It's the same reason people don't want to be on reality television, even people that like being in front of the camera.
Also, last time I was in a documentary I hated how I looked/sounded. I had to reassess my personality for months afterward.
Lastly, why single out Jo and myself? You said it's because we ham it up and act so comfortable on cam, but ALL camgirls play and hype themselves up on cam. That's our job. You could argue that ANY camgirl not wanting to do this documentary is contradicting herself by not being comfortable in front of cameras.
Fact of the matter is, I don't think some viewers understand just how comfortable the buttons "ban" and "end broadcast" make us in our rooms.