I'm not familiar with Kbin much but just had a look at your profile from a not-logged-in person's pov. In the right hand sidebar are some stats about you including one that just says "moderated" with a 3 next to it. The 3 is a clickable link that seems to take me to a list of your created magazines.
Not sure if there's a simpler way to get to it when you're actually logged into Kbin though.