Potential infringement of copyright

[d b]

This IS a question.

After copyrighting the manual in versions 3.0 and 3.1 with a document that allows updating by others, CAN walter just decide to break/end the tie to that document when someone else makes an allowed update?

I didn't see this in my reading because the user, Cory Doctrow, was happy with the system. He is also a writer, just a few years (and books) into his career and was more interested in gaining readership and exposure than squeezing every penny out of what would be far fewer copies sold.