totally agree.
I shoot solo girl (quite a few porn stars who rarely get shot solo) and it's even worse when a chick is masturbating and *oh goddin* like a mofo. I tell em pre-shoot to pipe down on the vocals but often have to remind them mid-scene. whimper good, speaking bad.
I don't get all the spitting either. While I'm not into the hc content, when I have seen that I wonder -where's the fucking lube? Get some lube! come on! why no lube? even without spitting seems lube is a rare commodity on a hc porn set.