User blog comment:DaNASCAT/Technical Update: January 15, 2013/@comment-207.237.168.45-20130124221252/@comment-20644-20130124230353

There are two points to make. One is that COPPA applies to the site, not the user. Wikia is legally required to comply with COPPA. That means that we can’t allow any accounts to be operated by someone under the age of 13, because we are based in the United States. I say that to make a distinction&mdash;people often say "you're under 13, you're not following COPPA!" That's not really the case. Wikia is the one that is required to comply with COPPA.

The second point is that whether or not COPPA applies to users isn’t particularly relevant. Our Terms of Use are set up to comply with COPPA and our Terms of Use state that no one under the age of 13 can have an account. That applies to anyone who registers an account, and where someone lives is not a factor when it comes to complying with our Terms of Use.

The moral of the story is that if you're under 13, you can't have an account on Wikia.