I think you need to look into the entire story behind that message from Cox and also the context in which that argument came up before identifying Torvalds as a root cause for somebody's burnout.

To my mind, there's a big difference between: (a) being burned out (b) giving up on something; and, (c) knowing exactly how much you're willing to put up with. I think Alan Cox's stepping down as TTY maintainer was far more a case of option-c than burnout. Most people that have followed Cox's career doubt somebody as prolific and as much of a character as he is
could burn out.
