We used to socialize with dance, and drink.
People gather online in online communities where they can be whoever they wish.
I'm sure once I become famous, there will be at least twenty different people attempting to be me, online. For whatever reason people are drawn to the level of anonymity that comes alone with the Internet. Look at me for example, I'm making a web-page. The web pag will be viewed, but most if not all people reading it, will never know what I look like or how I really am. This factor is very alluring to many people.