There are so many smart people on HN, such as yourself (and not being sarcastic!), with wide ranging expertise. I think we can crowd source some improvements right here.
I claim no special skill or insight into economics, I'm just tagging these posts so people don't mistakenly think that what is presented is mainstream economic theory. Based on our experience in the last decade, as a first order approximation heterdox claims about QE unsupported by evidence should be greeted skeptically.