USING ALL CAPS IS THE VIRTUAL EQUIVALENT OF SCREAMING AT PEOPLE! It isn’t just rude and aggressive, but it also makes reading difficult for your users. By using all caps, you’re reducing the shape contrast of your text, making it less likely that users take note of and read the information that you’re trying to highlight. For this reason, using all caps can negatively impact accessibility for users with visual impairments or reading difficulties, like dyslexia. Research also shows that reading speed is reduced by 13-20 percent when the text is in all caps.^[[1]]

Using all caps is only acceptable when reading is minimal and not too lengthy, such as in the case of logos and headlines.