I see it as a combination of what both of you said: documentation is needed, but in the absence of it i can take it as a challenge to see how much of it i can come up on my own
It has the welcome side-effect of helping other people too if i stumble upon something useful and it occupies my time with the sim nicely: i haven't even exhausted the limited single player content yet
Don't quote me on this, but i have a faint memory of Luthier talking about improved documentation at some point. I guess it will probably come in one huge bundle of a PDF once they release the SDK.