Microsoft created a monopoly in the late 90s and pushed lots of people out of the market. Pirating their software is imho, simply civil disobedience. I would never steal from a person, or a corporation that adds value to society. I wouldn't take stolen goods from costco, they pay their employees a living wage and don't tend to destroy communities when they move into a town. I probably wouldn't think twice about receiving something from Wal-Mart though. They're one of the corporations that's done the most to destroy the lower middle class, they use underhanded techniques to put their stores on historical sites in developing countries and the children of Sam Walton are everything that's wrong with this country.
As individuals we have very little power to fight corporate person-hood, fracking, and the explosive polarization of wealth in this country... One way we can fight the beast, is through pirating. Let me give you an example. In college I went nuts on napster and downloaded everything I could. The average price of a cd was $17 and as a music lover I had been paying this fee for years. I thought it was great that I could finally hear music I loved (often times from a very deep back catalog) without paying large sums for it.
My actions destroyed the record companies as they existed from the 60s to the late 90s. They didn't destroy music though. Instead, the record companies got wise and embraced services like Rhapsody and Spotify. Now I pay a very reasonable fee of $10 a month and I can hear new and old music to my heart's content. I probably haven't illegally downloaded a song in 8 years because I don't need to. I also try to support my favorite artists by paying for a show when they come through town. If it's at an affordable venue I'll buy a reasonably priced beer at the show and support the purveyor. If it's at some stupid live nation venue that charges $10 for a bud light, I'll sneak in a flask or maybe even a joint and say screw them.
Back to the original thread though. The nice thing about software now is that I don't have a need to pirate it anymore. I get free anti-virus from avira with minimal ad support (screw the days of Norton), I don't play games, and generally everything else I use is free with ad support. That's fine with me.