Thread:Jackboog21/@comment-27862439-20160326044739/@comment-2248043-20160326054100

The main wikia here can disable the underage user's account if you file a report. You can just say "Grapeleaf Skeletonizer is reporting [user's exact name here] to the wikia because they are underage." Then you provide the proof to go with it (no screenshots, even though the wikia has a button to upload screenshots to the report) and within a few business days the wikia will get to it.

If someone confesses in chat there's not much you can do about it, unless the local admins want to do something to enforce COPPA on their own wikia. Some wikias do, some wikias don't. Best to have the person confess outside of chat, but you should also try to avoid asking their age directly, if possible.