This group was made ​​to encourage people to donate by buying the Team Fortress 2 donation hats. The proceeds of the hats will be sent to the American Red Cross and directly to the earthquake /tsunami victims in Japan:
http://www.teamfortress.com/post.php?id=5170&p=1.
This group is only for people who have at least one of the following items "Humanitarian's Hachimaki, " "Benefactor'sKanmuri", "Magnanimous monarch.