DSM-IV would probably suggest Bipolar Affective Disorder "Inflated self-esteem to levels of grandiosity" or Narcissistic Personality Disorder "Believes that he or she is 'special' and unique and can only be understood by, or should associate with, other special or high-status people (or institutions)" "Has a sense of entitlement, i.e., unreasonable expectations of especially favorable treatment or automatic compliance with his or her expectations"
My point is: not everyone that writes something dumb on the Internet is mentally ill. They may just be bad at writing or unclear about the importance of their work. (Remember, we only laugh at people like the subject of this article when they're wrong. If Zuckerberg sent them this letter, the reaction would be much different.)
