[onion2k]

People are motivated by different things. This guy was motivated by quantitative value tracking with defined goals ('scores', 'winning'). Some people's brains increase levels of serotonin in response to situations where they perceive they've done something good - you have a physical neural response to a psychological event. Other people's brains don't (or they release less serotonin, or there's serotonin uptake inhibitor at work somewhere). People like that doesn't feel 'good' in response to 'winning' so classical gamification doesn't work.

The key to motivation is to make a psychological bridge between things that you don't want to do and the emotional state that releases neurological chemicals that in turn make you feel happy.