You may have had some fun in your early days of computing playing with the Zapf Dingbats font. Type something, convert it, and voila! You have a “code” of sorts. Then the internet grew and you had better things to do with your computer. But dingbats are way older than the internet, and there was a real use for them.
When typographers, engineers, and calligraphers got together to create computer fonts, there was still a purpose for dingbats, webdings, or wingdings. See, they aren’t a code for letters, but a language all their own. Read more about the history of the decorative fonts at Vox. -Thanks, Phil Edwards!