I couldn't care less about redistribution or use! In fact I want to encourage it (mainly because I want some people to write games for me to publish
Let's face it - if you're competent enough to write a game and finish it to a level at which it will sell
you are probably competent enough to arrive at your own code eventually. To most people it's just fun poking through the source code and I'm looking forward to see some mods.
There are a lot
of very common, deep questions answered in that source code. Nearly everything, in fact, that ever gets asked on this site by newbies is solved in that sourcecode somewhere, apart from multiplayer programming.