It is good that you are curious but your many questions aren't exactly new or haven't been addressed by security experts already.
In order to answer all your questions we would need to essentially discuss all the security best practices in Bitcoin and the open source movement in general which would involve far more time than a simple thread.
If that is true - where? I wrote my post because I went looking, and didn't find what you say exists.
I am well versed in computer security - and googling for the listed questions do not yield any quality leads. Perhaps my main question is this: Do you know if anybody has taken the time to compile a comprehensive wiki on the subject, and perhaps specifically, as it pertains to Bitcoin?
The closest I've been able to find is pages like
https://en.bitcoin.it/wiki/Myths - and there are no real, hard numbers there. The words "Best practice" and Bitcoin do not seem to appear in close proximity, anywhere on the internet, and I see this as a barrier to Bitcoin's progress.
How do they say... "Common sense is not so common".