True, but I can understand why they brought in the rules, as they can't really protect models or the users if they go 'off site'. Least being on CB there's some protection with the shows and whats being said within the conversation etc
Like if you had a private password show with a model and you had tipped the tokens for the password & entered into the room but then the model changed the password of their room, you can report it to CB if you didn't hear anything more from the model. CB will have a log of the conversation & settings to whats happened on the models room.
But if you go to Skype etc, and you paid for a Skype show, its your word against models / user. theres no proof either way.