Zuck: I have over 4,000 emails, pictures, addresses, SNS [Redacted Friend's Name]: What? How'd you manage that one? Zuck: People just submitted it. Zuck: I don't know why. Zuck: They "trust me" Zuck: Dumb fucks

2004 is when that was typed. I'm not sure that that social contract ever existed. We just didn't understand how "free" services worked.

This really seems like the exception that proves the rule, given how few Facebooks came out of that era. We had a social contract, but it turned out that being sociopathic is a winning strategy when everyone else is playing by the implicit rules. See also: modern politics.

The dominant business model that decade was monetization via getting people to fork over their data.

That's basically what Web 2.0 was.

Indeed. The 2004 chat snippet is notable because it displayed attitude that was uncommon at the time. Zuck made it mainstream.