I have seen lots of posts where he explains things patiently in a lot of detail.
I just wonder if he gets the same tough treatment he gives to others when he is wrong. And if he takes it well. I am assuming that sometimes like most of us he is totally wrong.
FWIW he created (one of?) the worlds most used OS kernels and shared it freely sparking all kinds of projects and businesses.
As for the rudeness, I feel that is hugely overrated. Compare hime to someone like the "developer evangelist" who got two developers fired because they said something to each other that s/he didn't like and see what I mean.
Edit: comments welcome, I have enough points but I cannot learn what mistake I made if nobody tells me.
And doing so in a way that paints it in the most favorable possible light for one position, in addition to using technical skill as a free pass for them making personal attacks.