kaerli and verden: Your arguments are ignoratio elenchi because they aren't really directly addressing anything that is on this thread. Your digression is that PlaneShift is closed content, and as it stands whether anyone thinks that's an issue in the first place is subjective in nature.
You can make your argument in plain English instead of convoluting it with a gratuitous Latin term.
In the strictest sense, PS is not open source. The engine is open source and the content is not is cut and dry (objective). You can fork the engine. You can't fork the content, nor can you reuse it in another project. Whether this matters is subjective, but the definition of open source is not.