I'm careful to not write a post using AI. There's a difference between writing and proof-reading. I see no wrong with proof-reading. The difference between what I had written and what ChatGPT wrote during the proof-reading process is negligible but it made my writing very clear.
I tend to write like I speak but that makes it difficult to read. So for the sake of clarity I use proof-reading tools. I used to use Hemingway Editor or Grammarly, but with Apple Intelligence or ChatGPT I get better results.