Yellowposting is a movement by 4chan's /b/ board to stop the spread of pornography on the board. It is commonly seen as users posting images with a bright yellow background, reasoning why pornography is bad and shouldn't be spammed throughout the board.
Anon1: *furiously masturbating to random porn he found on /b/*
Anon2: Fuck porn, porn is for porn boards, not /b/. *Continues Yellowposting*
Anon2: Fuck porn, porn is for porn boards, not /b/. *Continues Yellowposting*
by NebulaViper August 07, 2022