I'm a self-proclaimed expert in Cthulhu Mythos so you can ask me about them. I've always been fascinated by their philosophy of "Uncaring, infinitesimal, insignificant, unknowable." so I researched a lot about the setting. However, I'm a traditionalist so I only accepted the original H.P. Lovecraft book and those that he referenced, so don't ask me about the EU Public Domain thing.
To any of the Cthulhu Mythos reference, I do see them, but don't really have anything to add, so know that there's still this one to look out for the reference!