Mature (not in age) is a requirement. GOOD.
If you've seen the hell that is Nintendojo (according to Alexa's ratings, not as popular as Planet Gamecube thank god), you'll see what happens when people let their immature biases get in the way.
The people there are idiots. They always editorialize in their reviews, often about maturity. They complain about cel-shading whenever it shows up, and act as though it exists for the sole purpose of being different. They use the word "kiddy" too much - what mature journalist does something like that? The guy who wrote the review of Paper Mario: The Thousand Year Door actually said that Paper Mario wasn't the "graphically stunning, mature epic" that players somehow expected after Super Mario RPG (yeah, what a "mature epic" that was, and what a thing we'd expect from Mario. Read review at
http://www.nintendojo.com/reviews/NGC/view_item.php?1098138530 ).
And let's not forget their "editorials", ALL of which are stupid rants with little more than opinion put into them. Don't expect something that intelligently explores multiple points of view and comes to a conclusion. Expect a rant, especially if it's from Eric "I am an overgrown adolescent" Mattei.
The least they can do is to stop bragging about how they're Canadian. They must be making our neighbors up north look bad.
Anyway, my rant about Nintendojo is only to demonstrate what happens when maturity is not a pre-requisite for a writing position. You can visit their site to see why Planet Gamecube is so much better. Keep up the great work guys.