Well assuming for the sake of discussion that this isn’t a paid advertisement, it’s still clearly a glowing endorsement of the service, no? Is a glowing endorsement not allowed?
The post contains some context about why they were looking for something like the service, gives a short review of why they like it, what they get for the cost, and the lists alternatives at the bottom. It seems quite human to me. Humans tend to talk about things they like.
Just shouting "chatGPT wrote this!" isn't really a comment on anything. It's just provocative enough to feel like it's a criticism while also being both totally unrefutable and unprovable.
It's odd how, "I don't like the writing" somehow seems to mean that people are totally fine assuming ChatGPT wrote something. Feels like a dismissal almost as low effort as the point you're trying to make.
I was just in a roundabout way saying this article is just paraphrasing the homepage of the service, much like what ChatGPT does when it writes an answer for you.
If you can prompt GPT to write a blog post and you feel the results adequately represent your views, why not just post the prompt? "paste this into chatgpt 4 for the expanded version"