@Lustig Andrei,
It is so obvious that he/she is an extremely unhappy, miserly, insecure, single-minded little person who feels the need to insult nearly all he/she speaks with. He/she can't point out someone's perceived illogic or errors without insult - is that not a true sign of an inferiority complex?
Oh wait, let's get a definition.
"Inferiority Complex:
Inferiority Complex is a term used to describe
people who compensate for feelings of inferiority (feeling like they're less than other people, not as good as others, worthless, etc.)
by acting ways that make them appear superior. They do this because controlling others may help them feel less personally inadequate.....
If this is taken to the extreme, it becomes a neurosis."
Yup, describes JTT to a T.
Read more:
http://www.alleydog.com/glossary/definition.php?term=Inferiority%20Complex#ixzz2FiweofU6