It's sad that people have to hide their actions. Downloading copyrighted material is legally in the clear in .us and his particular setup sounds highly oriented towards downloads, not uploads.
Additionally, as somebody that highly seeds Linux distros through torrents, I'd like you to go back to your Jump to Conclusions mat.
They could probably swing it in court as similar to knowingly purchasing counterfeit goods, which I'm pretty sure is illegal. Thus far they're only going after people for uploading because: 1) it's less of a legal grey area and 2) the huge monetary damages serve as a warning while going to prison would probably seem too harsh, even for people that think side with the RIAA/MPAA.
If you are using bittorrent, you are almost certainly uploading.
I'm also not sure that they never prosecuted anyone for downloading is actually a sufficient amount of evidence that it is legal. I've never heard of anyone get prosecuted for uploading just one song or one movie, that doesn't mean that it would be legal to do so.
I don't know about the U.S., but at least in The Netherlands you are allowed to freely download copyrighted movies and music for personal use. For now, anyway...
Additionally, as somebody that highly seeds Linux distros through torrents, I'd like you to go back to your Jump to Conclusions mat.