Depends. The main point the author in the OP doesn't seem to understand:
Know your audience.
"Dumb down" your writing, but only if it will help you communicate with the person (or people) you're targeting. Else there's no benefit to it.
Know your audience.
"Dumb down" your writing, but only if it will help you communicate with the person (or people) you're targeting. Else there's no benefit to it.
So should I write as I [find I need to] speak or should I write with my natural lexicon?