In 2004, Facebook wasn't garbage. It was simple, it served a purpose very well. It changed the social experience of being in college, a sharp contrast against "social" today which is largely irrelevant to having real social experiences. Facebook is what it is today because of the momentum it established while a social networking site for colleges, in a time when it actually served its purpose very well.
At any rate, I agree that "social" is a very boring space right now. I find most of it anti-social. It's an excuse for not being social: if you put everyone you meet in your Facebook "friends" list, you have an excuse for not keeping in touch with people.