On: MH370 pilot made many turns and speed changes, new...

[smabie]

Arm chair theory: pilot wanted to commit suicide in an elaborate way without tarnishing his name.

I feel like that's the simplest explanation, though I am curious about other theories.

[guenthert → smabie]

And killing dozens in the process? That ain't suicide. I don't think there is a simple explanation.

[tremon → guenthert]

As mentioned in another comment (https://news.ycombinator.com/item?id=27046552), it's possible the pilot chose to make his plane unlocatable because if it cannot be proven he intentionally downed the plane, his family would receive a payout from the airline.