I'm not sure I would want to register my own username. But...I might. Or not. I'm worried Facebook might turn into Friendster or MySpace where you could change font colors, backgrounds and stuff. Nooo!
what's the benefit of registering?
You just have your own username instead of a number for your profile's address.
nice blog....what does username does?
Just gives you your own username, like:facebook.com/yourname