Congratulations!
You have discovered the ranking system of this forum
It has to do with the number of rank points that you gather by making valuable/nice/funny posts on the forum (as deemed by us, your fellow forum members) You can moderate posts (There, I gave you a rank pint by moderating your starting post as a 'Good') post.
Somewhere there is a topic explaining the details, including the ranks you can achieve, but basically you can spend your mod points (without losing your own ranking) to reward or mildly punish posts on the forum.