If you own a paysite and you are having problems with XXX password sites then they will not go away. You need to buy a simple script that will automatically disable username/password combinations that are being used by more than 1 or 2 people. That is the only way to solve this problem. I had the same problem when I started doing paysites 2 years ago and bought PASSWORD SENTRY. It's only about $50 and they even install it for you.... Here is the link
http://www.monster-submit.com/sentry/
I know there are other products on the market but this is the one I use and it's pretty good :-)
Hope that helps mate
Terry
www.voyeurzine.com