Trollers use the web to make snide remarks and hurt feelings, and gain enjoyment from it.they insult others and start arguments, instead of respectfully answering questions, or adding to a healthy discussion. Trollers can key on individuals they disagree with, and make derogatory comments on all of their questions and answers.

There are trollers in all parts of life. Those who derive enjoyment by making others feel bad. You can respectfully disagree with someone, and you can intentionally insult someone you disagree with. They are two different things, and they demonstrate the kind of spirit that resides in the user.

I hope this helps.