If you are a new member, I think there is an automatic time delay until you are able to create a new category, so this might not be visible or you yet?
Every new poster's first few posts are moderated.... I think the number is 5 minimum.
Then there is the probationary filters... get off track once or twice you mind find the next few posts moderated.
Then there are full time idiot-filters for a few who have yet to show that they can be responsible members of the community... these have all of their forums posts moderated no matter how long they have been here.