I agree with this! Fighting piracy and counterfit goods is all fine with me.
Making websites with user generated content the policeman for the fight is not practical or possible.
As written, this thing would make it my responsibility to review every post, and link, and photograph posted on here to be sure it wasn't copyrighted material, or a link to someone selling phony ipads.
I say its Impossible.
I went to a few news sites today and "commented" on their SOPA articles, pointing out that I could easily be posting a link to a music download site, or the text of a copyrighted article; right there in their comment section. Making them liable for it!
Every webmaster on the planet would be chasing his tail!
There is no need to thank me for this valuable information: I'm doing it as a public service.