I love that you guys are growing with each of your fishbowls, taking the constructive criticism and running with it. Great job. Your questions are fantastic. Great job bringing in those elements of Gothic craft (doppelgangers, the uncanny, house/ guest/ host) that we've been talking about. I love that you also considered our conversation about "important" parts of text, discussing Poe's epigraph and how it affected your thinking.
1 piece of constructive criticism today: particularly because one does not have the chance to clarify his questions in written discussion, provide the background that inspires your thinking. For instance, instead of just saying, "Why does the narrator's doppelganger always appear when the narrator is about to do something immoral?" instead you might write, "I noticed that Wilson's doppelganger appears when he's drinking, gambling, and doing other immoral acts. Why do you think his appearances coincide with Wilson's bad behavior?" Particularly for those of you who, perhaps, aren't getting many responses to your questions, more clarity might help people answer them more effectively.