[tghw]

If I'm understanding you correctly, you think only laypeople would search for such a thing because more knowledgeable people think that what the program is doing is mathematically impossible? Sounds like a classic example of thinking you know more than you do, and trying to look at the world as binary, black and white.

In actuality, images have a wide range of sharpness. In this case, Blurity can improve the image. (Using mathematics no less!) Will it be perfectly sharp? No, not always, but it will be better. And that's something people will pay for. Even experts.