Wow. I've been using 5px wide Fixed[1] for years because I'd never seen another font that is as readable that small, but this seems pretty nice. [1] https://en.wikipedia.org/wiki/Fixed_(typeface)
Do you use 5px as your primary terminal/editor font size? What sort of screen/resolution do you use?
When I decided on that font I was using a netbook though, so the screen was quite smaller. The 5px font[1] allowed me to have terminals side-by-side on a tiling WM and still get 75 columns. Without it, I probably would have had to stick to seeing just one window at a time.
I've since stopped using a netbook, but I still like maxing out my screen/terminal real-state with it. Right now on the resolution I said it's letting me have 3 terminals of 75 columns side-by-side. Although, I normally just stick to 2 terminals of 113 columns for those times when lines go over 80.
Anyway, I find the font so crisp and readable that I've never felt a desire to change it. I'm getting a bit tempted by the font of this post, though.
[1] It's actually one of the 6px-wide ones, the 6x9 version, but that includes the space to separate characters. I said 5px to compare with the HN title which says 4px despite that not including the spacing.