Ten-year-olds shouldn't be allowed to join, actually. We should have an age limit of thirteen, in accordance to COPPA. Wikia had recently instated a policy for certain wikis that attract younger users, in which anonymous editing is disabled. You have to be thirteen to join and edit, so wikis centered on subjects such as Sonic cannot be edited by anonymous users, in order to better abide by COPPA.
If this forum were to be opened to general gaming, a similar practice should be in place, in which registering users need to be thirteen or older.