RE:Short & DistortsTrolling stock chat boards isn't "highly illegal" it's annoying.
A troll is Internet slang for a person who intentionally tries to instigate conflict, hostility, or arguments in an online social community. Platforms targeted by trolls can include the comment sections of YouTube, forums, or chat rooms.
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They have higher levels of something called negative social potency. This is a fancy way of saying that they like to cause mischief and suffering, along with the attention that entails.
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Trolls will frequently try to attack something you have revealed you like or are in favor of. If someone is trying to insult your tastes directly, or if they’re generally bashing the topic of a forum or post, you probably have a troll on your hands.
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Another way to spot a troll is by their persistence. When trolls sense that they’re getting an emotional response out of someone, they usually won’t stop until they’ve gotten their victim sufficiently riled up.
https://edu.gcfglobal.org/en/thenow/what-is-trolling/1/