Username

Is it important to display a username to a user when logged in?
Yes, users need to know when they are logged in and when they're not. They need a logged in state. The appeal of having the username listed inside the...
What should I call a highly restricted username field?
What is a username field?What characters are not allowed in username?How do I create a username? What is a username field?The username-field command...
Username field in registration form
What is username in registration form?What is a username field?What is user registration system? What is username in registration form?The user name...
Is the use of username/password in a mobile app needed? [duplicate]
What is the purpose of a username and password?Is my username the same as my password?How do I use the same username in Salesforce? What is the purp...
Log in with username vs. login with email address - which option provides better user experience? [duplicate]
Should I use email or username for login?What is the reason that users should log on with a username and password?What is the difference between logi...
What Characters to allow for Usernames? [duplicate]
What characters should be allowed in usernames?What characters should not be allowed in usernames?How do you make your username special?Do usernames ...
What is the best way to display friendly usernames?
What is best to use for username? What is best to use for username?Your username should be simple enough to remember but hard to guess. Never use ea...
If username is required for registration, but optional for login (email can be used instead), should it be part of the register form?
If username is required then it should be a part of the registration form, for obvious reasons. You can make username/alias optional in the registrati...
Should usernames be unique?
Why you need a unique username for every account. The main issue with usernames is that they are public, not hidden like your passwords. Reusing the s...