User blog comment:Ducksoup/Why We Don't Unblock You/@comment-5260227-20150920180505/@comment-25035274-20150923171228

Making a page doesn't make you an Admin. The owner of the wiki or a duly appointed representative there-of makes you an Admin if they need help taking care of things and decide you're a good fit.

Whatever qualifications they determine are a requirement are imposed by them, not Wikia. Wikia will not over-ride those qualifications. These qualifications will probably require you to have history with the wiki, in large part because it's the best way to see if someone meshes well with the community.

If you haven't been made an Admin at the wiki (I refuse to call them "Wikias". They are wikis.) you visit, it's probably because the people in charge of that wiki don't think you'd make a good one or they don't need the help.