It's interesting to hear the perspective of someone who describes themselves as non-competitive. I think that what I'm starting to see is that gamified education and rewards systems are of two varieties: those where you compete against others (like your GPA board), and those where you compete against yourself or your own goals (like the HiveBuzz badges). I tend to think that the latter has a more positive impact on student goals and motivation, as well as on their self image. Systems that pit students against each other may be motivating for some students but also have the potential to cause some students to feel bad about their own performance or to experience anxiety.