People who claim piracy is stealing should not be allowed to enter into any discussion of any sort ever. Why is this, you ask?
Well, because you are basing your whole argument on a FACTUAL ERROR. Why the hell would you do that? You are making yourself look like an idiot while contributing absolutely nothing to the discussion at hand.
Piracy is the act of making a copy of a product. It does not remove the original product. Hence, logically not stealing.
Furthermore, it is not legally considered stealing either. It is considered copyright infringement.
So, oppose piracy if you want to, but please, for the love of whatever deity you believe in, base that on some sort of rational argument, not a plain lie.
Why should a difference in semantics completely negate the spirit of an argument? Copying might not fit the legal definition of "stealing", but it does fit the legal definition for "copyright infringement." Unlicensed distribution has been proven to incur very real losses in some cases. If you need a rational argument for that, there's plenty of case law out there for you to choose from. Just make sure that you have a legal dictionary handy in addition to that Websters of yours.
What cases have established that unlicensed distribution of virtual media (i.e., piracy) incurs real losses? I don't disbelieve you, I'm just interested in this factual assertion since almost all my knowledge of copyright law stems from decisions of law rather than trial findings of fact. I know that some piracy by businesses (or folks using the media for-profit)demonstrably reduces revenue for the copyright holder, but that's not what we're talking about here.
From policy reading, though, my understanding is that although piracy of consumer media has some effect on revenues, there's not really much agreement as to the extent of that effect. Some (overly simplistic) sources assume that every pirated copy is a loss in revenue equal to the consumer price of the media, while others factor in the fact that a lot of pirates wouldn't download the media but for the fact it's free, among other methodological differences. I also recall that most studies have been about mp3 and film piracy, which are different beasts than game piracy for a number of reasons.
Just to reiterate: piracy is illegal, and the pirate does benefit from a work without compensating the creators or owners of that work. I do not advocate piracy at all.