The Free On-line Dictionary of Computing (19 January 2023):

has the X nature
nature

   (From Zen Buddhist koans of the form "Does an X have the
   Buddha-nature?") Common hacker construction for "is an X",
   used for humorous emphasis.  "Anyone who can't even use a
   program with on-screen help embedded in it truly has the
   loser nature!"  See also the X that can be Y is not the
   true X.

   [Jargon File]

   (1995-01-11)


The Jargon File (version 4.4.7, 29 Dec 2003):

has the X nature


    [seems to derive from Zen Buddhist koans of the form “Does an X have the
    Buddha-nature?”] adj. Common hacker construction for ‘is an X’, used for
    humorous emphasis. “Anyone who can't even use a program with on-screen help
    embedded in it truly has the loser nature!” See also the X that can be Y
    is not the true X. See also mu.