It’s largely a problem of how these tools are packaged, but while it’s certainly nice to have an LLM check your spelling, or review your grammar or style or usage, you should never allow them to actually edit your document directly.

First of all, they will make substantive changes you didn’t intend. The meaning will get changed, errors will be introduced. Tone will be off, and as the author says, your voice will disappear. There is no single “correct” way to write something. And voice and tone are conveyed with grammatical and usage variation. Don’t give that up to a robotic average.

Secondly, you will never improve, or even maintain, your own writing skills if you don’t actively engage with the suggested changes. You also won’t fully realize half the purpose of writing, which is to understand the topic better yourself. Doing the work of editing your piece will help you understand the subject even better. If you just let the machine “fix” your errors, you’ll become a worse writer and less of an expert over time.