The hypocrisy of the otakus must end.

[JKTrix]

"Her Majesty" etc put it quite nicely. I believe you may be hanging around some of the Fansub 'newbies', who saw Naruto on Cartoon Network and decided they would go and find it on the internet. This is not the majority of the anime fans who utilize fansubs. Also your overuse of the word 'Otaku' leads me to believe you are not quite sure what that truly means.
While it's true that sometimes if one has the fansubs of a show they won't buy the DVDs, I feel that it's their choice. If it's a show that they really enjoyed while they were downloading the fansubs, they are very likely to buy the DVDs if they can afford it.

Media Factory, a fairly prominent Anime production studio, clamped down on fansubbers back in 2004. I remember this vividly because I was right in the middle of Samurai 7 when it happened. They can threaten legal action against fansub groups--just like American licensed companies can. It's still all in grey area, but in order to keep things amicable it's often best to stop when asked.

I used to call myself an Otaku. After all, I am very passionate and knowledgable about all kinds of anime, and I will in fact be travelling to Japan next month. But I realized--that is not enough. Otaku is truly obsessed, truly dedicated to 'the cause', whatever it may be. They do things beyond what a normal 'fan' would do. I renounced my 'Otaku-dom' the moment I saw this video.
http://www.youtube.com/watch?v=0QeiuWtrqyY
(The song is from an anime called "The Melancholy of Haruhi Suzumiya", recently licensed by ADV. Check it out! I'll definitely be buying those DVDs)

Edit-- To outerlimit.
Naruto is now licensed, thereby rendering further distribution of the fansubs illegal.
DVD versions of the show will have the Japanese track on them as well. Support anime, buy the DVDs, and keep the fansubbing of licensed shows quiet. And you spelled 'Spirit' wrong. Normally I wouldn't mind, but it's italicized.