I think they are unaffected, but I think also that the 'would's are incorrect: If the power goes out, I dare to think that they will all leave. If the power goes out, I bet they will all leave. If the power goes out, I am sure that they will all leave.
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You wrote this as your partical response to the overall question:
I think that the "good morning's" are inappropriate.-- No
I think his "how are you's" are inappropriate. -- No. His "how are you"s are inappropriate. I don't think we need the "?".
Your technique (if I can call it that) is new to me. Anyway