This is a direct result of the philosophy changed around cam sites over the last years.
To exchange yahoo or Skype ids in the future , for being able in the end to become friends out of the cam site it self.
Free Cam To Cam (in public chat) is crucial feature because it gives you the ability to get noticed by models, and increase your overall chances for a communication.
To establish some kind of friendship with a webcam girl.
To socialize inside an adult webcam community, and if possible to to watch him in free chat (free cam to cam).
Your webcam will be visible only to the chat host when you are her room, and to noone else.