Please don't use fixed-width fonts to write text. Please use fixed-width fonts to write code.

Please don't complain about tangential annoyances—e.g. article or website formats, name collisions, or back-button breakage. They're too common to be interesting.

(quoting https://news.ycombinator.com/newsguidelines.html)

I think part of the distress experienced by readers is due to mixing the fixed-width font with "text-align: justify". So it's close but not exactly fixed/consistent.

Firefox Reader Mode makes such sites more readable.