There are many variables to how to use a copyright. Creative commons has allowed people to publish their work and at the same time communicate to what extent how they would like to share their work.
Within the context of this game the Developers have some means of power to protect their work and that of others, for example removing servers that compromise their rules. Personally I prefer others to not edit my work unless they have contacted me and asked to do so.
Rather than ramble on about my own opinions take a look at these 2 site, they contain some relevant reading.
Clearing up copyright confusion
Creative Commons
Within the context of this game the Developers have some means of power to protect their work and that of others, for example removing servers that compromise their rules. Personally I prefer others to not edit my work unless they have contacted me and asked to do so.
Rather than ramble on about my own opinions take a look at these 2 site, they contain some relevant reading.
Clearing up copyright confusion
Creative Commons