Thread:JackofallCCtrades17/@comment-25209034-20160628133934/@comment-24032096-20160728031704

As per Wikia's website.

"You confirm that you are of legal age to form a binding contract with the Company, or an emancipated minor, or have parental or legal guardian consent and are fully able and competent to enter into, and comply with, these Terms of Use. In any case, you confirm that you are over the age of 13, and acknowledge that the Service is not intended for children under 13 years of age. You may not use the Service and may not accept the Terms of Use if you by law are barred from using the Service or accepting the Terms of Use.".

It is all a legal issue, as personal information/data may be given to the organization when users contribute in a wiki.