Reserved user account names

[sebix]

See https://forum.ubuntuusers.de/topic/benutzername-user-und-benutzer-im-portal/

Idea: a list of blocked user account names, cannot be registered by users

Maybe configurable as textarea in /config/

List of possible blocked names:

Generic names:

• Administrator
• admins
• Benutzername
• benutzer
• user
• username

By topic of the forum:

• ubuntuuser
• ubuntu
• canonical

By defined team & role names:

• Moderator
• Supporter
• Teamleiter
• Teamleitung
• Projektleitung
• Team
• Wikiteam
• Webteam
• Serverteam
• Ikhayateam