A bastard, a person who treats others with indignation and callous disregard. Also referred to as a annoyance that seems to reappear regardless of what you do,much like a hemmoroid.
An amateur troll. A beginner, fake or wanna be troll that claims to be one. Gets butt hurt when in face of real trolls or blocks people. Even in some cases referring to one's self as a troll would be amatroll behaviour in certain contexts.