Well we are way way OT now, my point is simply that Japanese entertainment productions (including JAV) are mostly funded upfront and there's minimal practice of royalty to complement salary. Most often the person most in debt is the performer him/herself. As some of them owe money to the studio/agency for cosmetics, training classes, studio fees etc.
I know you are just being fastidious and not seriously in a debate mood. So I will let you off
Sorry, Im not agree with this.
In Japan the Porn actress does many events were they get paid for each event.
The more popular they are the more they are call to do photo shootings, fan sign events or even go to some events around Asia.