What is the most amazing thing that you know a game group has done for their community?
Hmm. I have seen a lot of game groups online give to charity. I organized some charity give aways with my game groups as well. DriveThruRPG gives a lot to charity and that is nice.
I have seen gamers donate their time, money and books to children in need. Volunteering for various groups.
I like to think that in general that gamers are good people.