Multiple personalities- How do we differ from our online identities?

The DSM IV defines multiple personality disorder as having at least one alter personality that controls behavior. But in the new internet era don't we all have a second identity that functions at least somewhat separately from our normal self. In most cases everyone in America has a second identity that they use on the internet. Whether it be an identity for an anonymous internet chatroom, a screenname, or a team name for a fantasy league, the internet provides us with a platform to create a second identity for ourselves. When we converse with someone in an internet chatroom we are talking to an alias, very seldomly do people use their real names when identifying themselves. These aliases allow us to spend hours talking to people without every actually knowing who we are talking to. Like most people my age I have numerous internet identities. I have a screename, an email address, and numerous fantasy teams. The identity I choose to focus on is the many identities I have created throughout my numerous fantasy leagues. Over the years I've partaken in upwards of 20 fantasy leagues. I do everything from fantasy baseball to fantasy basketball and football. Each time I enter a league I am forced to create a team name. This team name will serve as my alias for the duration of the fantasy season. When people address me with wall posts or trade offers they are sending their information not to Seth Sininsky but to the alias I have chosen to represent me. When I join a public league I am randomly assigned to a league full of people who I do not know. So at its core this is just a league full of strangers who spend an entire season interacting with eachother without ever even knowing the real names of the fellow league members. Since I have used a different team name for every league i've been in i'd say that over the course of my life i've had upwards of 20 identities on the internet. No other medium allows users the ability to create and operate so many indentities throughout such a wide range of activities. Some people have multiple screenames and some people have up to 5 email adresses just to sort out all of their various identities in the real world. For instance a professional can create an email address for work, 1 for family, 1 for friends and maybe one for everything else. This is an example of an individual creating an online identity to help separate his real life identities. Like any other internet identity my fantasy league identities leave me vulnerable to identity theft. In order to sign up for a fantasy website a user must provide the site with all types of personal information. Since I do my leagues through yahoo I have had an active account with them for the better part of a decade. If anyone ever hacked into the yahoo database they would have access to information that could ruin my life. This is why it is extremely important for yahoo to have the most updated and stringent security software. In conclusion the internet gives us the opportunity to be whoever we want to be. If someone wants to get in a chatroom and claim to be the queen of England all they have to do is log in and type away. The anonymity of the internet has created a new cyber world which affords us the opportunity to play pretend with the rest of the world n be whoever we want to be.