Ask HN: Username vs. email as login identifier – worth keeping separate?

By _stefano_pinato · 2026-07-14 · 1 points · 0 comments

I'm building a self-hosted OIDC/OAuth identity server for .NET (IdentitySuite), and right now username and email are the same field — if you have an account, your username is your email. I keep going back and forth on whether to support them as genuinely separate fields, th…

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