Bottom line, your friend's experience is a definite outlier in the sum total of Droid experiences of which I'm aware. Why isn't it reasonable for me to question the reason?
Well, you asked if he had a brain, which directly calls into question his abilities vs. the fault of the interface - a very complex interface for non-technophiles, as many, many people agree.
However it is reasonable for you to question the reason, and I did state that I wasn't particularly referring to you in the Linux scheme of things, but the overwhelming situation we see in Linux community is "PEBKAC" - Problem Exists Between Keyboard and Chair, that is, the user is too dumb. That's why the Linux community is such a turnoff to me.