Hi,
For web applications, it is very usual for people to use an email as a username. The restriction on the period character is very annoying in that regard.
I understand why it's a restriction on database names, but for user names it creates a limit on the ability for less frequent users to access the site. Most people remember which email they used or have only 2 or 3 to try. Passwords are saved in keychains. However, remembering a username... pfff!
Is there any way that the restrictions on user names could be adapted to allow for characters that are valid for an email address in the near future?
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