[citation][nom]Skiim[/nom]The "normal/poor ppl" who pirate stuff because the prices are too high ARE thieves. Just because you can't afford to buy a $60 pc game or go to a $20 movie doesn't make it okay to pirate. It makes it okay not purchase. I don't have an issue with people pirating, but to blame it on greed from the artists making it is a joke.[/citation]
I'm not sure how pirating is thievery. There's the obvious argument where we say it's not stealing because we're just receiving a copy of it, but in terms of receiving something you have not paid for, it's not stealing unless a price is demanded. Thus...
Assumed innocence. By this I mean that I assume that the original uploader of the file obtained the correct licensing and whatnot for the file, and chooses to sell it to me and everyone else for $0.
Thus, by simply downloading the file, I have not to my knowledge committed wrong, and the responsibility for copyright infringement falls on the uploader.
Furthermore, the same assumption allows for peer sharing, where those of us seeding a file that we downloaded on the assumption that the original host has the correct licensing can't be held accountable for helping the original uploader distribute their file for 0$. (no different legally than helping any friend do some job out of the niceness of your heart)
It comes down to one of those, "I didn't know it was illegal!" kind of things, wherein you find out when you get pulled over on the highway that the speed limit was 40mph, without having seen a posted speed limit sign to tell you it changed from 65mph.
You don't have a legal obligation to check if the service you are provided comes from a legal foundation.
That all being said, as long as the company has proof that the file infringes a copyright, this technique is fair game, though they should be forced to inform all of the clients as to why they're interrupting/stopping the download.