I always find it interesting that people who see copyright only as a barrier are those who have created little themselves. Many people (like me) own copyright to stuff and explicitly state that anyone can use it freely, often through variants of the BSD, GPL, CC, or my favourite, the Free Beverage License (You can use it, but you owe me a drink next time). Alternatively, educational or other non-profit use is allowed. However, it is my choice.
People that create something very many people want to copy, are special in a way. Anybody else might have made it, but they didn't. Special or not, they are within their rights to say others cannot use it without my permission. The fact that it is much easier now to copy works than it has ever been before does not change that right per se. Let us not forget that that same ease of copying has lead to unprecedented generosity as well, as witnessed by the load of free stuff available today.
In the unlikely case the above is of use, please feel free to use any of the above, and you don't even have to buy e a drink ;-)