On my iphone, at least, the monospace section cuts off after ~20 characters and you have to drag back-and-forth to horizontally scroll the rest into view. Landscape mode helps, but not much.

It's fixed width at a tiny fraction of the screen width. Reading each line requires manually scrolling from start to end of the line, and then back to the beginning, seeing maybe 2-3 words at a time.

It doesn’t wrap on mobile and you have to scroll horizontally to read it all.

Nor does it wrap in Firefox, so pretty annoying on desktops as well. Unless you're using a large monitor.