Well, any voluntary system is already in place - people can give whatever they want to whoever they want.
Indeed so. But as I have pointed out previously, current charitable donations are insufficient, or we would not have 36 million people a year dieing of starvation. So I advocate a massive charitable effort, to rid the world of absolute poverty, once and for all. And, far from changing like the wind, this is exactly what I have advocated, throughout this thread.