Why is someone being a point Nazi? Has anyone else noticed this?

In this question http://www.fluther.com/disc/8022/what-are-in-those-little-barrel-looking-things-that-st-bernards/ I awarded busterhymen and Valhalla30 a point, but it only gave Vallhalla30 points. I have also noticed my score is staying the same after certain people give me a point. I have also noticed several users scores skyrocket almost overnight.