I agree with you on one point : this software is not for everyone. My mistake was that I did not warn people enough about what it does. I have recently added the "Caution" information to correct that.
But, you know, I am not selling this software. I am not marketing : my goal is not that 99% of people can use it. I repeat that : this software, at first, is for me. You seem to think that it should have be no more, but I keep saying that I can share it. At your question "who will use this software", I can answer : everybody that will find it useful. Even if it is one or two person in the world, I do not care, it does not cost anything.
You also think that the calculator is stupid, because of its behavior. Who needs a calculator that makes integer divisions ? Perhaps the same people that still use vi on the Unix command line rather than a rich text editor with a handy interface : because they need it at some particular time.
Pierre Chatelier
(Version 1.0.4)