We will be able to become registered users of Pottermore later, so we will need usernames and passwords because it wouldn't work any other way. или did I get your Вопрос wrong?
Yes. Ты dont choose them though, there are a Список of I think 4 (lol I don't even remember for all I know it was 2) usernames selected at Болталка in which Ты can choose from. Most of them sound really cool so don't worry you'll probably like it или grow to like it as Ты go along. I go by the name MidnightElm, trust me you'll like the names I had trouble deciding which one I liked еще lol. :)
