Is this the correct approach?
Google, the advertising company, supplies a search function to world+dog. You ask, it searches. If one wants to be forgotten then the thing to do is surely to delete the embarrassing data. Then Google won't find it.
As I understand it, the way this 'right to be forgotten' is being implemented is that Google, having found the data, has to take steps not to display it. At the moment it is almost working but can it scale up?. Can it handle photos? Can Google notice that Mr A Politician is in that group of drunken guys skinny dipping 20 years ago?