With the increacing popularity of Linux, and indeed the Open Source movement in general, this annoying mistake is becoming more and more common.

Only something that has source code can be "Open Source", or "Closed Source" for that matter

The open source philosophy is one of collaborative editing. However, this does not allow you to say "Open Source Poetry" when you mean "Collaboratively Written Poetry". Poetry does not come as source, hence it has no source to be open.

I'm starting to wonder how many times I can restate this one point in different ways...

Ok, I'm done now.