[dane-pgp]

Presumably YouTube would be able to intervene to convince the court that this is a disproportionate response, given that YouTube already has a system in place for copyright holders to request individual videos to be taken down. Whether this defence against collateral damage is, on balance, good for web users is a more complicated strategic question.

[mijoharas]

Playing devils advocate, there already is a system in place for copyright holders to request that any website is taken down that obviates the need for any DNS level blocking (ISP level blocking).