I’m writing about this topic because I recently saw some guys using my code in their projects without keeping the copyright notice (I really don’t want to blame anybody in this article).
The fact that they used my code was not really the problem, I love inspiring other people to do awesome stuff based on some of my concepts and thoughts and I’m happy when I could help you with my code. So everybody is free to use my code, but now the important part, under the given license terms.
http://www.patrick-wied.at/blog/how-to-correctly-use-code-you-didnt-write