Maybe some people will be satisfied with how Caragous or Wolf Masters work if we document it, but others will go on and on, until (for example) they know exactly the formulas we use for the spells, and if we give them to them, (I know) they'll go on and on.
This way, it would take more time documenting the game than improving it.
We know that what we put in the guide will never be enough... ever...
The things we can do, is correct the wrong things and the things we changed