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Why I (A/L)GPL
http://zedshaw.com/blog/2009-07-13.html

. I want people to appreciate the work I’ve done and the value of what I’ve made. Not pass on by waving “sucker” as they drive their fancy cars

via robrohan via http://developers.slashdot.org/story/09/07/14/1414259/6-Reasons-To-License-Software-Under-the-ALGPL

However, I’d like to explain why I use the GPL after decades of writing open source software and after a couple of “successful” projects. These are my reasons for using it, and only apply to me and what I want to do with my software from now on. You are free to your own opinions and choices, and I hope you’ll respect mine.

"I love open source, but companies? Companies are going to have to pay from now on. That’s how economics works. If it’s good enough for you to use, why then it’s good enough for you to pay for it."

GPL FAQ