Tommy Casserino, who works in music production, says he wrote out a list Tuesday morning and shared it with friends. The meme went worldwide.
What sparked it?
"I'm tired of going on Facebook and all the negative posts. Everybody hates people," he said. "I just wanted to change something. I didn't think it would change it like this."
Not everyone digs the phenomenon, which has clogged Facebook news feeds for days, but even if it lasts just a little while, as all viral sensations do, Casserino's fine with that.