[like_any_other]

Voluntarily under threat of prosecution under existing legislation if they don't.

[dark-star]

no, under threat of filing every single copyright claim against them, swamping their legal department.

Which is the correct way to do it (i.e. file a claim if you see someone violating copyright law). This just makes it easier for the ISPs

[like_any_other]

> no, under threat of filing every single copyright claim against them

A.k.a. prosecution under existing legislation.