[wmf]

I applaud Google for at least trying to do the right thing, but how do we know what percentage of false positives/negatives are in there?

[gizmo686]

A third party is free to go through googles transparancy reports, there take down requests, and use the engine itself to validate what got taken down. As far as I am aware, Google is the only party devoting the resources nessasary to go through their DMCA requests.