Hater

A person who chooses to hate another person on the internet for no apparent reason, or if he has a reason, it is often a half-assed one. Often the person is a victim of multiple personality disorder, schizophrenia, or other diseases that cause him to make up his own reality, often including several made-up personalities who praise his own work, attack or ignore those who criticize his work, and attack others' work. Sometimes there may also be a case where he accuses others of theft, when he himself is a thief.