LMAO Dammit Q!
I don't think PS is fiction. That said, there is no telling how many identities of people surrounding BHO are aliases.
You got me on the second point as I can not point to a specific mention in the IG report, though you should clarify if Goodlatte meant the FBI when stating "they" have not interviewed him. Perhaps he was referring to Congress.
As for your last point, Q talks about AM and PS as if they are, indeed, different - and real - people.
However, at the end of the day, there are so much misdirection on both sides, we might not find out the truth of the matter until it's all over.
That's my feeling about speculating in general. We sometimes go off on tangents, especially when Q is not around. I'm staying til the end of this movie and more than willing to wait til they roll the credits to find out who the actors are.
I'm happy he is not in the oval office but, damn, it is hard not to like this guy. I hope I'm never proven wrong.