I'm not so sure about the 'irrational' part. It's not that you're hateful
in any way: it's that Brad's perspective is necessarily skewed by the work
he does. He spends his whole time looking at the kernel in an adversarial
manner, hunting for faults and ripping them open: of course the parts of
the kernel which work well will fall beneath his notice, and kernel
developers will come to be seen as a contemptible and possibly malevolent
bunch of fault-introducers. I've seen exactly this symptom in some of the
best software testers I've worked with: they find problems really well but
very soon you wish you could hire someone just to sit between them and you
and be a verbal punchbag.
Police officers are prone to the same failing: with shift work and long
hours, after a while all they see of the non-police world is victims and
criminals, and the part they concentrate on is the criminals. Of course
they'll come to see everyone around them as a potential criminal.