Troll (internet)

A troll is someone who tries to make people angry by saying things on the Internet. The purpose is to excite strong emotion in an online community. This is to get a reaction from other online users, or to cause problems. In social networks platforms, a troll is a user who make inflammatory or inappropriate comments for the sole purpose of upsetting other users and provoking a response. 
Sometimes trolling can get a user banned from a website or platform as it can be disruptive. Some users do it to be humorous when they know others will be angry. The best solution is to ignore trolls and to not give them the attention they want. This has become known as "don't feed the trolls".
In October 2012, the internet news site Gawker, publicly revealed the name of an internet troll who had called himself "Violentacrez". Michael Brutcsh had collected photos of young girls from Facebook, often in bikinis or short skirts, and them posted them on the site Reddit. He also posted photos of women, taken without their permission, which focused on their breasts or bottoms. His actions made many people very angry. Brutsch said he was an internet troll because "...I just like riling people up in my spare time."
There are a lot of efforts to detect and ban trolls on social network platforms such as "TrollSpot" in which Li a user of the website and other members of the team whom are also users of the social media website use machine learning techniques or what is known as a computer robot to propose a wide approach to detect trolls.