(user!~name)
Find files where the user doesn't contain the text name.

Usage: (user!~name)
Where name is the text to search for within the user's name.
This excludes all files and folders where the user (owner) of the file or folder contains the text specified as name.
(user!~Freshney)
Combine multiple parameters to find files that match either parameter.

See Also
(user=name), (user!=name) and (user~name)