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.
I'm saying, that if your main motivation is just to boost your ego with charity, to be able to say just what a good boy you are and to be admired for it, this is an extremely low motivation. This doesnt enrich one's spirit at all. In fact, it makes it poorer.