I thought I would take a moment to explain something about copyrights that I learned from a lawyer I know--I think it's very useful information for people interested in fansubbing. Note that my lawyer friend had to dumb this down for me so I'm not claiming to be an expert here.
People frequently complain about how companies enforcing their copyrights are jerks, bullying the little guy, not seeing the big picture, etc. Although I think the music industry in particular has taken it too far, in general my understanding is that companies must defend their copyrights otherwise they can permanently lose them. In other words, in a copyright lawsuit, if it is shown that a company knew about copyright infringement and did nothing to stop it then the courts may deem that they were implicitly releasing the works in question to the public domain. So their copyright would become null and void, opening the door for anyone and everyone to copy their stuff at will.
So the moral to the story is that even if Viz or ShoPro doesn't mind continued fansubbing of Naruto, or they understand that it's beneficial to them and helps to create evangelists for their series, if they are made aware of potential infringement they have no choice but to pursue the matter. So the trick is to keep a low profile and avoid doing things like emailing ShoPro and saying "hey is it okay for us to continue fansubbing this?" The other moral to the story is not to blame Viz/ShoPro if they need to shut this stuff down--they really have no choice.
One friend suggested that licensors should sublicense their properties to fansubbers for a token amount, like $1/year, so the fansubbers are completely legit. There are arguments for and against that, but the fact of the matter is that the U.S. licensors of an anime or manga probably don't have the authority to sublicense the work in that way. Licensing agreements can be really complex and there are a million roadblocks to something like that.
drunkgohan
law nerd (apparently)
Moved to more appropriate forum.
GotWoot Moderator