There hasn't been much consistency in terms of how this wiki differentiates the various components of the Mythos and the Real World aspects that created and shaped it.
Here are the factors as I see them that should guide our decisions:
A. We need to create categories that cover both fictional and real topics B. We need to address how to handle the inclusion of various real authors within the fictional Mythos, i.e. Lovecraft himself appears in certain later works as well as some contemporaneous Derleth works. C. We need to figure out how we want to handle or ignore what is considered "canon". Many great mythos stories don't always fit in an internally consistent universe. D. As an extension of C. We need to figure out how to handle the permutations of the Mythos timeline, i.e. alternate futures, inconsistencies, accidental contradictions, unreliable narrators, etc.
In addition, see the other discussions in the forum to help us iron out some wrinkles.