For anyone else wondering, here's the text of the actual email cited as the CoC violation:

Michal, if you think crashing processes is an acceptable alternative to error handling you have no business writing kernel code.

You have been stridently arguing for one bad idea after another, and it's an insult to those of us who do give a shit about writing reliable software.

You're arguing against basic precepts of kernel programming.

Get your head examined. And get the fuck out of here with this shit.