help me!!!! i need to know everything!!! wat the hell is a user group, positive/negative comment, nobody ranking, all that!!!

First of all,We are a Cod2 clan.(do u know this game?)
your nobody rank increases with every 50 posts in our forum
Possitive comment increases reputation and negative comment decreases it (it s just for fun)

respect roxas
if you have any other questions feel free to ask m8