In Internet slang, a troll is a person who starts

In Internet slang, a troll is a person who starts quarrels or upsets people on the Internet to distract and sow discord by posting inflammatory and digressive, extraneous, or off-topic messages in an online community with the intent of provoking readers into displaying emotional responses and normalizing tangential discussion, whether for the troll's amusement or a specific gain. Both the noun and the verb forms of "troll" are associated with Internet discourse.

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