Seeing Grammarly doing quite well (judging from all the adverts on yt), I can imagine a GPT-3 based editor that improves the user's prosaic output, and I suppose it could be quite popular. Perhaps writing technical documentation can even become fun.
GitHub Copilot (in markdown mode) provides that already. I'm increasingly using it to help write technical documentation and blog posts - it works great.
You can even paste in a chunk of code to give it some hints, start writing about it (with Copilot assistance) and then delete the code later.
