LKML: The end boss of kernel development
Contributing to Linux was my first time interacting with a mailing list, at least for the purpose of sharing and reviewing code. I thoroughly hated the entire process. I tried in vain to write about my experience in a constructive manner, but it always turned into an unhinged rant, so I gave up. In summary, I think that sending and reviewing patches via email is exactly as insane as it sounds.
That's the worst part but kconfig doesn't sound much better. Even if I had time, I wouldn't try contributing to the kernel for those 2 reasons alone.
It is great that he got to the point he is now. Kudos for pervering.