They are not pirates AFAIK, no one has been pillaged, held hostage, raped or murdered.
As worst they are copyright license infringers. Or, rather, the people doing the uploads are.
If there was any infringement of copyright then that is a civil matter, it's not a reason for the doors to be kicked in and people arrested. That's doubleplus ungood.
The world has moved on, but rather than change the MPAA et al are trying to use new, draconian laws to enforce the status quo and ensure our future culture is controlled by corporations.
This will never work, all it will do is inconvenience the honest and force them into the arms of the infringers (who tend to offer a better service).
Why hasn't Google, Yahoo! or anyone else been shut-down for linking to infringing material? Yet a UK citizen is being extradited for what is, at worst, a civil offence?
Why weren't Sony execs jailed for the rootkit fiasco?
Why hasn't the RIAA been punished for torrenting infringing material?
The questions go on.
It is right that creators, distributors etc get a fair wage (as determined by a free market)
It is not right to restrict free trade or attack my freedoms simply to protect an outmoded revenue stream.
It is not right to hold our culture to ransom.
It is not right that elected representatives act against the wishes and best interests of the electorate.