Earlier quoted context omitted.
It'd be hard to argue that it ISN'T "readable." Maybe some would think it's ugly (I don't), but objectively speaking it's ticking every "readability" box.
On mobile it's very difficult to read because the font is too small and line width is too long, so I have to choose between squinting or scrolling back and forth and back and forth and.. (or use Firefox's reader mode). I don't mind plain text, but this site is several orders of magnitude harder to read than http://motherfuckingwebsite.com
[edit]
Oh I see it looks bad in Firefox on mobile. Fair enough.