The practice of writing text entirely in uppercase letters within electronic mail is a method of emphasizing particular words, phrases, or entire messages. For instance, typing “MEETING MOVED TO 3 PM” employs this convention.
Employing this stylistic choice can immediately draw the recipient’s attention. In the early days of digital communication, it was sometimes used due to technical limitations or a lack of formatting options. However, it’s now generally discouraged due to its common association with shouting or aggression in online communication.