Ulphus: I had a similar argument to what you describe with CCP Ginger back in the day on the Chatsubo. Basically, my stance was (and still is) that with very little extra work everything CCP does fiction wise could be given an IC source. You don't even have to change the tone or contents, just say that "this is a story/history/report/news article written in exactly the way it appears by an IC character.
I'm completely on board with Gaven on this.
Any CCP lore needs to have an IC source, so it can be properly weighed (and questioned if necessary).
An additional matter for me is that any source who writes from an omniprescent view, like describing the inner thoughts and fears of characters, or describing ultra-secret meetings from an unknown perspective, will be classified by Merdaneth as fiction.
I have little trouble with these things, other than players here keeping bringing things up and tainting my views. Otherwise I stay away from OOC sources and wait until I get the info IC. However, most things people really hate, they *never* talk about IC, so Merdaneth never learns of it.