A legit question, and one that deserves an honest answer. I like to think of myself as a moral pirate. I try to buy books, music, and movies from artists I respect, when I can afford it. When not, or when it's something where I don't feel the artist(s) or creator(s) particularly needs my money (an entirely subjective and problematic scale, I know) I pirate it.
I feel justified, able to sleep at night, because Big Media (music, movies, TV, books, etc) have failed to hold up their end of the copyright bargin. Copyright is a deal: You (the content creator) gets a limited monopoly on distribution, and are allowed to place whatever restrictions you see fit. In exchange, I (society at large) eventually get entirely free and unrestricted access, when the work enters the public domain. Big Media has failed to hold up their end of the bargin by continually extending copyright terms beyond "reasonable' (another subjective term, I know), retroactively extending copyright for works that have already been created, and using their lobbying might to continue to push laws in their favor. As such, I see little moral or ethical problems with failing to hold up my end of the bargin; namely, respecting their copyright.
So I infringe. I download TV shows, movies, and books, and seed them back to the Internet at large. Were copyright 14 years, 50 years, or even the life of the creator, I'd like to think I would behave differently. But I'm not holding my breath the length of copyright to be reduced anytime soon.
-Rebecca
PS - I do have a problem with people who make money off of the work of still-living artists, by selling pirated copies or movies or books. But non-commercial copyright infringement is morally acceptable in my worldview.
PPS - For what it's worth, I try to practice what I preach. I'm a working artist, making a living off of what I create. Nevertheless, I have my book available for free on my website, along with videos of my shows.