Last week, a trolling campaign organized by right-wing internet users spilled over onto Twitter. The campaign, which was born in the fever swamps of 4chan and Reddit message boards, involved creating hundreds of fictional personas with gray cartoon avatars, known as NPCs. These accounts posed as liberal activists and were used to spread — among other things — false information about November’s midterm elections.
<https://www.nytimes.com/2018/10/16/us/politics/npc-twitter-ban.html