Thread:Sannse/@comment-46877839-20200913121033/@comment-1038387-20200913121849

There are no "any necessary steps". Admins are not required to take steps. The age restriction is a matter between the user and Fandom, as it's a Terms of Use violation. Admins are free to help out, but have no obligation to do so. The same goes for regular users; you could have reported the user just as much as they could.

If I recall correctly, Fandom does not block retroactively for violating the age restriction. The main reason for that clause is that COPPA prohibits them from storing personal information of people they know to be under 13 (or 16 in CA and the EEA). If Fandom didn't know at the time and they're not under 13 now, they're legally in the clear and there's no real need to take action.