I found some evidence Google tried hard to protect user confidentiality, in some letters to the judge in the court docket of Viacom v. YouTube. After the Order [PDF; text here] issued, Google didn't give up, but is continuing even

Tanner has filed yet another bill, its 9th, asking this time for $53,612.50 for June. And $439.68 in expenses. We haven't seen a bill as large as that from Tanner since February. You'd think for all that money, they'd be