I personally think username reusability is necessary, disallowing it may cause issues with trolls and attackers that can register and then update usernames multiple times, making impossible for others to use.
The systems that limit the frequency of username changes and/or have a name lockout period before release seem to do okay with balancing the need to release them back for genuine use and preventing malicious use.
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I personally think username reusability is necessary, disallowing it may cause issues with trolls and attackers that can register and then update usernames multiple times, making impossible for others to use.
The systems that limit the frequency of username changes and/or have a name lockout period before release seem to do okay with balancing the need to release them back for genuine use and preventing malicious use.