userprofilename
A userprofilename is the user-provided string that identifies a person within a digital system. It is commonly referred to as a username, handle, login name, or account name, and typically serves as a primary identifier for authentication and interaction within the platform. A userprofilename is distinct from the user’s display name, which is a more flexible label shown publicly.
Most platforms require a userprofilename to be unique across the system and to conform to specific rules
Creation and management practices vary by context. Users often select their own userprofilename during registration, while
Privacy and security considerations influence how and when a userprofilename is displayed. Because a profile name
See also: display name, user ID, handle. Examples include "alice99" and "Acme_01."