Yahoo! Answers poster 

Someone who takes every comment a person makes literally, no matter how obvious a troll/joker he is.

Guy 1: Dude, why won't you share your cake with me?
Guy 2: Because you're Jewish. *obviously joking with his snickering*
Guy 1: OMG! RACIST! YOU ARE WHAT'S WRONG WITH THE WORLD YOU NAZI!
Guy 2: ...dude, don't be a Yahoo! Answers poster.

Yahoo! Answers poster by CornholioIsSex August 23, 2012