What it had people doing was clear the air between each other.
To be more specific, this is the only time you allow someone to tell you what they think about you, without responding or reacting, even if it was offensive to you.
Many updated their status on Facebook:
“Anyone who comments their name under my status, I'm going to reply how I honestly feel about you, whether I know you personally or not”.
Originality of this challenge is unknown, although there is another clear the air challenge that existed since 2009.