What Is NPC, the Pro-Trump Internet's New Favorite Insult?

Twitter has barred hundreds of right-wing accounts for posing as soulless, "nonplayable" liberal activists. 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.