It's annoying when you have to wait a few days (Depends) to get your thread approved by a mod. I think its a good system don't get me wrong, but I think that contribs up don't have to wait for a mod to approve, or epic up idk. Just something I thought of now.
EDIT: (By Reflection) I disagree. Contributor isn't really that big a feat to get as all it really takes is one simple post (which might be a copy-paste or a repost, mind you) and they have a few reputation points.
The problem is rather that we currently have no idea that there are topics pending for approval without checking the appropriate sections or posts. What I however would like is any way to see that something is waiting for your approval or disapproval.
At the end of the day you'll get the same results: quicker approvals but without the need for this. After all, people make mistakes, even contributors, and unapproved threads from contributors are quite common.