Deception in online versus Face-to-face relationship

I totally agree with the critics that deceit in online relationships is more than Face-to-face relationships because to start a relationship there is no prerequisite of any identity proof in first place.  Internet enables people from different locations on the globe to hook up with each other and there are innumerable cases of fraud and deception that take place everyday for false identity, gender swapping, and cheap thrill.  Internet is the place to where people experiment with different things because of anonymity freedom.  The FBI warns people to not get lured by online dating because most felonies are a result of inappropriate motives.  Although these match making and adult mingling websites guarantee success in finding someone special, no one can bet on the authenticity of the identity, character, history of the members.  My experience with most of the couples who get in relationship over the Internet look totally mismatched in reality because they themselves tell that they fell for each other based on similar likes and dislikes as conveyed online and not the physical appearance.  If they had known each other in person, probably they would not have married each other, because the physical image of their better halves seemed to be totally misrepresented.  I believe there are fraud cases in Face-to-face relationships as well, but at least the people involved in these relationships know whom to look out for in case of fraud.