Everybody has had a class clown in their class. He/she constantly makes jokes and disrupts the class with his rude behavior. Unfortunately, there are lot of people on the internet who are exactly like this: the Trolls>

Wikipedia defines a troll the best : someone who posts inflammatory, extraneous, or off-topic messages in an online community, such as an online discussion forum, chat room, or blog, with the primary intent of provoking readers into an emotional responseor of otherwise disrupting normal on-topic discussion.

TL;DR: People who will say anything to make people angry. Sexism, antisemitism, even saying that the moon landing was fake. Just check the comments on a YouTube video of it. It doesn’t matter what they talk about, it is all about making the angry and start convincing them that they’re wrong.

This face describes everything about them:

It’s a look that wants to make you angry, and they’re enjoying it. They are some of the lowlife of the internet, slightly above internet pedophiles.

It is amazing how much troll life has increased over the years. Calling any video or picture “fake and gay” is the epitome of being a troll because it happens on almost every video ever made. They even started to make fake science to annoy, but also to amuse people. Though troll science is acceptable on the internet, most other types of trolling is unacceptable.

Here is a word of advice: If you respond to it, the troll wins. So please just try to ignore the trolls on the internet and do not give them a reason to continue trolling.