A prospect told me our case studies sounded like ChatGPT... they were right (I will not promote)

I run a small company that does marketing for home-services businesses (plumbers, HVAC, that world). A prospect told me one of our case studies "read like ChatGPT." that bothered me because a human did write it. I wrote a lot of it. So i pulled up Wikipedia's "signs of AI writing" page and used it as a checklist against our site. there are some obvious, and extremely common tells that you'll see around today. Obvious tells like: "not just X, but Y" sentences em dashes everywhere section headers that were to