How can hackers access WP usernames?
115301
Can I Prevent Enumeration of Usernames?
86885
Why do some users have username "user########"?
31381
How do I find out the user name and password for an existing account?
99513
postfix - how to prevent users from sending with another users name
33844
How do real and effective user IDs work?
72668
Dealing with "difficult" usernames in targeted comments
124799
Why are some usernames on comments not a link to user profiles?
71580
Change default username from "Unknown" to "User{number}"
61074
How to retrieve the user name from the user ID
51375
Why would one limit username format?
95514
How can I find out my user name?
26553
Further anonymize deleted accounts by changing the username in close/delete notices
68483
Get User's IP Address
22176
Keep short history of user display names
24316
Usernames vs. Real Names
52532
How to get logged-in user's full name in windows?
28812
What's all those users in the /etc/passwd file?