Well this site is for help mostly, but not all of us here need help. If you read the forum descriptions you will get a good idea of the site.
The new member is a face for people with less than 25 posts (it's 25 or 50). You get a new face for post count levels (25,50,100,250,500,1000, and 2500). Don't spam though, it's not good! And faces such as mine are for staff members.
Rep power..is very confusing
Someone else should be able to explain it to you.