A critical factor in its success was that the X developers were willing to give the sources away for free in accordance with the hacker ethic, and able to distribute them over the Internet.
Eric S. RaymondA software system is transparent when you can look at it and immediately see what is going on. It is simple when what is going on is uncomplicated enough for a human brain to reason about all the potential cases without strain
Eric S. RaymondComputer science education cannot make anybody an expert programmer any more than studying brushes and pigment can make somebody an expert painter.
Eric S. RaymondWe hackers are a playful bunch; we'll hack anything, including language, if it looks like fun (thus our tropism for puns). Deep down, we like confusing people who are stuffier and less mentally agile than we are, especially when they're bosses. There's a little bit of the mad scientist in all hackers, ready to discombobulate the world and flip authority the finger - especially if we can do it with snazzy special effects.
Eric S. Raymond