So a couple of minutes ago, a kid posted a funny comment, so i went to bump their karma up a couple points. i wanted to bump them up from an n/a to a 7. i looked at their karma before and then after. and after bumping them up to a 7, their karma went down. so i tried it on another kid to find out that to actually raise someone's karma, you have to rate them an 8 or higher. i think that a 6 and a 7 should raise karma, not lower it.