Of course, in practice no one is responsible for misuse of the DMCA. Google would have a better incentive to control misuse of any "correction" feature, but it

Of course, in practice no one is responsible for misuse of the DMCA. Google would have a better incentive to control misuse of any "correction" feature, but it would still probably end up being used to censor things occasionally. It's a difficult problem to solve both because of Google's primary goal (provide an accurate representation of what people are looking for) and the difficulty of deciding who's actually "responsible" for a given category of content.