I was annoyed that all the images of the pixel fonts were larger than they actually ostensibly would be on a tiny screen, so I zoomed out my browser all the way on macbook pro retina screen, only to find the tiny letters of the blog text were 100x more readable than any of the pixel fonts in the post.

And if the pixel font images were to be rendered at actually 5 pixels on my Retina screen, because the resolution of Retina screen is so tiny, the pixel fonts would still be unreadable without a microscope.

So while it's a cool project, as long as we can put Retina-dense screens in things, we are past the point where there is any useful need for a 5 pixel font