Actually, I use the WTFPL[1] for a lot of code I produce, so yes, you could do that, though it wouldn't be nice to do that.
My opinion is that copyright should not exist. While I can't demand copies from anyone, I don't think anyone has a right to stop me from sharing anything that I have access to, either. Putting things on the internet counts as giving me access. I simply reject the notion that people should be able to control the distribution of digital data. It's both illogical to assert ownership of something abstract and harmful to society at large.
On the other hand, I think people should be credited for their work (if they want). But that's a social issue and not one that can be solved by laws. Look at the scientific community: plagiarism is highly frowned upon and proper attribution is required. And that's mostly by social pressure, not by laws.
So in short, my believe is "Give credit where credit is due, but don't try to tell others what they can or can't do.".
