Great effort! For both, the devs and the users. If anyone feels that inner desire to help other people, they should! Genuine selflessness is a healing force for us and everyone around us. And anyone who demands to get their tokens and other material rewards is just in it for a profit, not to help others! School yourselves for philanthropy, not greed!
but its such a tempting offer! i'm giving my money for a good cause and contribute to charity. Why should I feel bad about getting a little something back? maybe this is exactly why so many people participate in charity. sure, a desire to help is important, but if its already there, its nice to know, youre getting something extra on top of gratification.