What user names should I disallow?
I am working on user registration for a web app, and was just started thinking that I wouldn't want some clever/evil person to come along and register a user name like 'admin'.

What other user names should I disallow? Database keywords?

Does it matter?

Thanks in advance for you responses!
What user names should I disallow?
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I am working on user registration for a web app, and was just started thinking that I wouldn't want some clever/evil person to come along and register a user name like 'admin'.

What other user names should I disallow? Database keywords?

Does it matter?

Thanks in advance for you responses!