Understand Chinese Nickname

昵称不可以为空请重新输入

[nì chēng bù kĕ yĭ wéi kōng qĭng zhòng xīn shū rù]
'Nickname cannot be empty please re-enter' appears to be a placeholder or default setting, not an actual online name for use. This phrase simply tells people using software or websites that they must provide a proper nickname to complete a process of creating an account, etc. Thus this term would not typically serve as a meaningful username itself.
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