[swhipple]

I agree that freedom and practicality are related, but disagree that it undermines the argument. If they were completely unrelated, source code availability would not be an issue; however the legal and practical freedom to do something is often not zero effort or little work.

I'm wondering what you have in mind by user-modifiable systems. For example, KDE and Firefox are free and allow for quite a bit of user-customization without any programming knowledge. At some level you would naturally have to write code.

I recently came across this interview and thought it was well done. Stallman responded to a similar question: https://youtu.be/NB8mCcLRxlg?t=59m55s