Все же, завязка на парольную фразу или seed выглядит не слишком удачной в плане человеческого фактора. Ее стоило делать опциональной, но никак не основным методом генерации ключей.

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As I said everything in Nxt is made on purpose. For example, brainwallet is used to protect users against Key disclosure law. Such strange method of getting an account id is made intentionally to protect ordinary people from government. How it's supposed to work is still waiting to be revealed.