A Reddit user opened up a thread inviting the Muslim users of the site to reveal the ways in which their lives changed after 9/11.
Some of the responses people shared were pretty sickening. They include plenty of tales of racism and prejudice meted out on Muslims and non-Muslims with dark skin.
Redditers who are friends with people that were targeted also shared their stories in the thread.
The submissions show the worst and the best in human nature, with people discussing injustice and their responses to it.
People are terrible sometimes.