Again, not a technical problem. If you think people shouldn't concentrate on what somebody did then they were young, Google has nothing to do with it. We can witness in US politics both how people are forgiven for being prominent KKK members and for drowning a woman while driving drunk and then fleeing the scene - and these people not just not become pariahs - they become an important politicians with millions voting for them. On the other hand, we witness high school shenanigans dug up and dissected, decades after, on TV and mass media. All these happened before Google even existed. We as society are capable both of forgiveness and of extreme un-forgiveness, if we want to. We can choose either, or do both, depending on our preferences. In either case, Google has nothing to it.