Thousands of people responded despite having absolutely no idea what they were joining. And despite Danny having absolutely no idea what they were joining either.
Faced with a growing army of devotees, Danny simply decided to ask them to be nice to other people through perpetrating Random Acts of Kindness (RAoK) every Friday. Typical RAoK include paying the toll for the car behind you at a toll booth or buying a pint for a complete stranger in the pub.
Five years on and Danny's Karma Army has swelled its ranks worldwide and spread a little happiness to thousands of unsuspecting strangers.
To celebrate, Danny has created a Justgiving page and aims to raise £5k for International Care And Relief to build a classroom in The Gatumbiro Primary School, Kenya. Danny's joinees have already donated more than £1k. Go on, join him.
Can you think of any cool RAoKs? Post a comment.