If the acronym is used once, simply using the words is usually the right approach. […]
When an acronym is used multiple times, though, it’s likely it’s being used for practical reasons rather than tone of voice. Reading can be clunky if the words are written in full each time, so all we have to do is define it the first time it’s used on each page; from there on in it can be used freely.
After I tweeted this article on Twitter, Tomas shared a letter by Elon Musk to SpaceX engineers about the same topic.
Excessive use of made up acronyms is a significant impediment to communication and keeping communication good as we grow is incredibly important. Individually, a few acronyms here and there may not seem so bad, but if a thousand people are making these up, over time the result will be a huge glossary that we have to issue to new employees. No one can actually remember all these acronyms and people don’t want to seem dumb in a meeting, so they just sit there in ignorance. This is particularly tough on new employees.
Just use the words.