Worldwide, at least 10% of the audience (but depending on your specific demographic, much higher) which is a crazy significant number (for contrast: your users

Worldwide, at least 10% of the audience (but depending on your specific demographic, much higher) which is a crazy significant number (for contrast: your users are three times more likely to have some form of dyslexia than they are likely to be using Firefox). For anyone with (partial) dyslexia the serifs are information-murder. https://www.bdadyslexia.org.uk/advice/employers/creating-a-dyslexia-friendly-workplace/dyslexia-friendly-style-guide https://www.bdadyslexia.org.uk/advice/employers/creating-a-d... But also note that font size and spacing matters a lot: at 16px with 24px line spacing, this is super hard to read. Change that to font-size 20 with the same 24px spacing, and this read perfectly fine.