That's the wonderful thing about bitmap fonts: they're designed to be readable even in less than ideal display conditions because they were made for old-school CRTs and some of them even for dot matrix LED signs and the like.
And I don't really mean in the "reading for pleasure" sense, you don't want to curl up with a New Yorker article rendered in Atari ST 8x16. But in the "all characters are visibly obviously distinct" sense, so when you are scrutinizing a piece of code, it's absolutely clear what character is what, so you can find and fix bugs and follow the flow.
