[otikik]

Once you have their IP addresses you can make them serve anything you want. Set your imagination free.

For starters: copyright-infringing material.

[layer8]

Unless you hold the necessary rights to the copyrighted material, that would make you a copyright infringer yourself.

[martin_a]

How would they prove that when they label every content as it was their own?

[layer8]

Presumably they'll tell the copyright holder that sue them where they got it from, and provide evidence for that, and then the copyright holders will (also) sue the original source.