Yes, updating that post from 2011. The Terms and Conditions have changed so if you are interested in playing in Pottermore, it's good to know where to check on their rules.
Here's the general Pottermore website (US version): CLICK!
Specifically, you can find Terms and Conditions here.
List of the categories that you can find in there:
Access to Pottermore and creating your account(s)
Children including users under 13 years of age
Galleons and house points
Misuse of Pottermore
Purchasing books from the Pottermore Shop
Defective and replacement of books
Use and limitation of use of books
Third party software
Promises, exclusions and limitation of our liability
General complaints and requests for further information
Changes to these Terms
Governing law and jurisdiction
Further information and contact us