For several reasons I would side with the Free Culture Movement, in favor of allowing creativity and remixing. Now, don't get me wrong. I am not suggesting that everything should be free and available for the general population to re-create. There should be limitations and guidelines, but for the most part I think those details are being worked out. There are several sites that offer media under the creative commons license. You can find photographs, music, web design, animations, documents, and artwork that are "free" with some restrictions. As an individual that likes to be creative I would be honored if someone found something I created and then used it in their project.
Lets say I created a template for a website. It took me weeks to get all the details just right. I could see myself posting it on a server or site that offers it to members for free. Of course membership would be free, an agreement would be made that the template is free and available for any modifications. I don't need to be referenced as the creator. If you like it take it and customize it to your needs. However, there would also be an agreement that a member couldn't download the template then turn around and post the same template on another site that does make a profit from selling the template. That would be wrong. Just like it wouldn't be right for me to use a musicians (cc licensed) work for my own monetary gain just by changing the title of the song.
I would estimate that most users in some form or fashion have used content created by someone else and modified it. It happens. In several ways that does restrict creativity. What happens in the case where some artist creates something unique, yet there are vague parallels to another piece of work? Are there copyright infringements. Constantly, I hear about this lawsuit and that lawsuit about copyrights. Take JK Rowling for instance. Once something gets into the public domain it becomes challenging to keep it locked up without being remixed.
Is there anything that is completely free? Sure, I suppose there is, but I have always experienced some sort of agreement that sets restrictions on what is permissible and isn't when using something under the creative commons license. It isn't always easy to find the agreement or associated rights of the content, but its there. In most cases when I signed up for a membership with a given site I had to agree to certain terms and conditions. Then after that initial agreement the following content didn't mention anything about copyright's or creative commons license.