This document is meant to familiarize moderators and admins of online communities with the basic characteristics and psychological profiles of Trolls, and to define the term so that it is not overused in conjunction with other types of aggression. I will also make recommendations on how to handle trolls and trolling if it occurs and provide a risk assessment. Definitions: Trolling* is online aggression meant to cause as much disruption and reaction as possible. It is usually hit and run (short term), and is often not tied to the troll’s personal beliefs or experiences (at least consciously). Trolls are people who engage persistently in trolling. They often use violent language and imagery, as the goal is to create as extreme a reaction in viewers…