Partly it’s using simpler, more common words, eg dialogue is quite uncommon outside of office-speak (or acting I guess). Partly it’s about avoiding (often very

Partly it’s using simpler, more common words, eg dialogue is quite uncommon outside of office-speak (or acting I guess). Partly it’s about avoiding (often very stale) metaphors which make the meaning less clear to people with poorer literacy or who aren’t native speakers. I think it also encourages more direct and concise writing which is a lot better for people who read slowly.