I would love to see more data behind their users, as in how many of their nearly 500 million users have even used the service? Added to their profiles? Created a friends list? Verified their e-mail address?

I have friends who have, combined, created hundreds of dummy facebook accounts that they do not use because while they do not have dedicated facebook accounts, they often want to see someone's profile or friend's list. So they hit "Sign Up", put in a fake e-mail address, fake first name, fake last name and register. Facebook makes this quite easy because they don't even require, last I checked, that you verify your e-mail address before you start using the site features.