The HPA website claims "We are an army of fans, activists, nerdfighters, teenagers, wizards and muggles dedicated to fighting for social justice with the greatest weapon we have-- love."
According to the NPR story, "About 100,000 Harry Potter fans have been mobilized by HPA for causes including marriage equality, genocide prevention, and literacy. They raised enough money to send five cargo planes to Haiti bearing medical supplies after the earthquake there, and they've bought thousands of books for libraries in Rwanda and the Mississippi Delta."
In the NPR story, Prof. Henry Jenkins says, "This is a powerful new model for getting young people involved in the political process."
The organization is definitely carving out a new generation of activism. The NPR story notes "There's a playfulness and imagination to this brand of activism that can be lacking in more conventional political organizing."
According to the HPA website, "the HPA was founded in June 2005 by Andrew Slack, the Executive Director, and Paul DeGeorge of Harry and the Potters. “I thought we needed an organization to act as a Dumbledore’s Army for our world, full of Harry Potter fans wishing to embody the message of the books to create social change,” says Andrew Slack.
J.K. Rowling is an amazing storyteller, but I don't think she could ever have imagined all the many ways her characters and stories would stir hearts and minds around this planet.