I don't know about this. Most experienced developers I know of have family, and they generally value their personal time. They don't mind doing boring software.

I don't know about this. Most experienced developers I know of have family, and they generally value their personal time. They don't mind doing boring software. And even if they are bored, I don't think it burns them out. What I do know is that company processes burns out all sorts of people - experienced or not. From stack ranking, agile micromanagement, unrealistic deadlines, office politics, bad bosses... These things are prominent in nearly every company, especially in top companies like Google. I agree with the parent post, even if you by chance somehow hired fantastic 10x developers to your team, the environment in which those developers will be working in will probably burn them out quicker than just working on 'boring' software.