It copes by whoever did that being anonymous. The same method as any other unsolved “crime”. In terms of network persistence of the data, it would be a gargantu

It copes by whoever did that being anonymous. The same method as any other unsolved “crime”. In terms of network persistence of the data, it would be a gargantuan and fruitless effort to go after every bitcoin node operator on the planet in every jurisdiction they operate in. So Bitcoin copes by its very evasive design.