Do you really want a “competitor” to Facebook? Do you really want to have to make and manage accounts on multiple sites because you want to chat with someone and you don’t know which social media that person uses?
Isn’t it better to have a single place you check when you need to chat with someone because everyone else is also there?
Yes, it is better, which is why facebook is the only old school social network left. Do you really think we would be using myspace if it still existed?