I've been a Moderator for several forums, big and small; those who think being Moderator is "fun" or something to push forward and aim for are being mislead. I speak from experience here, being a Moderator takes a lot of your free time up, and a lot of it is reading comments, dealing with reported content and misbehaving members of the forums, in fact, unless you're really committed to helping others, resolve issues and are willing to give up your free time to do so, aiming for a Moderator isn't for you.
I mention this because I've seen a lot of members in forums generally backseat moderating in hopes to become noticed, and get the Moderator position; why? Well, a lot of people think being Moderator grants a bunch of permissions which you can essentially abuse, and being a "rank" higher than the standard member instantly gives you additional respect, again, they're wrong.
Being a Moderator requires patience, being able to take approaches on situations on unbiased terms and a frequent knowledge of the content being posted on a daily basis. You should also note that you have to be consistently active in the forums, follow and encourage rules and report inappropriate content to the current Moderators of the forums. Also, asking to be a Moderator won't help you get it, in fact, it's less likely to. Moderators are chosen to those who deserve it, and to those who would do a good job through showing their interest, not given to those who ask.
Just want to put that out there for those of you whom are aiming to being a Moderator, just so you are clear about what it involves.