From Wiki: In Internet slang, a troll (/?tro?l/, /?tr?l/) is a person who sows discord on the Internet by starting arguments or upsetting people, by posting inflammatory,extraneous, or off-topic messages in an online community (such as a forum, chat room, or blog), either accidentally or with the deliberate intent of provoking readers into an emotional response or of otherwise disrupting normal on-topic discussion.
Bullying is the use of force or coercion to abuse or intimidate others. The behavior can be habitual and involve an imbalance of social or physical power. It can include verbal harassment or threat, physical assault or coercion and may be directed repeatedly towards particular victims, perhaps on grounds of class, race, religion, gender, sexuality, appearance, behavior, or ability. If bullying is done by a group, it is called mobbing. The victim of bullying is sometimes referred to as a "target".
"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.
Ralph Waldo Emerson