Earlier quoted context omitted.
Megaupload is a weird one. He hosted in it the USA, giving USA jurisidction. Also it's still going through the courts in New Zeland and USA and hasn't been proven hes guilty. And if I recall he did alledge he followed the DMCA, which if he ever is extradited might save him if it is in fact true.
> And if I recall he did alledge he followed the DMCA, They didn’t even completely follow the DMCA, though. They had active features to detect duplicate uploads via file hash and link them together via deduplication, but a DMCA takedown request would only remove one link to the file rather than actually remove the content. They claimed a lot of things and tried to ride a wave of internet populism, but their case wasn…
The DMCA doesn't require you do take down more than requested whether you have the means to easily do so or not. And it doesn't necessarily make sense to do so for services like Megaupload where the URL is a kind of authorization mechanism - one publicly shared URL pointing to copyrighted content might be infringing while one not shared publicly but pointing to identical data might be OK legally.