Hide the REST Users Endpoint From Subscribers and Customers
Blocks the REST API users endpoint for logged-in users who cannot edit posts, such as subscribers and shop customers, so a low-level account cannot list your authors and their usernames.
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Never Show Login Names as Public Display Names
When a user's public display name is the same as their login name (the WordPress default), switches it to their first and last name, or to a neutral name, so author bylines and comments do not reveal usernames.
Stop Author URLs From Revealing Login Names
Gives new users an author URL slug based on their user ID instead of their login name, and adds a one-click fix under Users for existing accounts whose author URL shows their username.