I hear you. This is a valid argument. But I see it both ways. I will offer an open-source and get something else in return. My problem is, Amazon is a taker and it's getting greedy and not giving back. So do you think it is legal? Yes, it is. Is it ethical? No. You are rooting for the big guy, many people do. I simply care about the collective good of the industry and I am for the open-source. Just because you can, it doesn't mean you should.