Hello.

Thank you for your comment.
I am aware that Grammarly Pro can trigger false positives (I am using Grammarly myself) since it auto-re-writes content, "improving it".
We went through these posts looking for AI clues manually before we ran them through AI detectors (all 5 detected AI) and they appear to be Chat GPT results that were re-written and improved (by adding source links in the sentences instead, etc).

Someone reported this account and what caught our attention before checking up on these posts is that the account had a history of some minor plagiarism a few months ago and the user was not aware that providing basic sourcing is necessary when using someone's content.
@gregscloud/lg7yibboct5mawsjr9z8g0
@gregscloud/ebfg8ru5o2c06rkn9fofrj

What we found suspicious was that after microblogging plagiarised sentences with dbuzz, the user suddenly jumped into posting very well-written and elaborate articles, with at least 9000 words each, ranging in subjects starting from advanced psychology, to complex philosophy and even some charity-related articles. Also, the posts contain no sourcing of photography or images but provide apparent sources of reading (likely provided by Chat GPT)
It is very difficult for a human to deeply research each scientific topic/subject within a short period of time (2-3 days), and then write an extensive article like a professional in each field (writing it down and nicely editing it takes time too).
There were many visual clues in these posts that suggested the use of Chat GPT or similar tools, such as structure, wording and some pasting errors. Although some obvious clues appeared to have been eliminated (to avoid detection) like the use of words "in summary" "additionally" "in conclusion", etc; many of them remained in these articles.

We also checked the WordPress page created by this user (in May 2022) and all the articles have many signs of Chat GPT use. Just check any random articles there and you will see an evident use of CHAT GPT.
Examples:
https://gregscloud.com/chronic-pain-relief-and-kindness/
https://gregscloud.com/treatment-options-for-adhd/
https://gregscloud.com/friendship-means-different-things-to-different-people/

There is even training on how to use AI-generated content:
https://gregscloud.com/googles-free-ai-training/

Clues in the article above.

"In conclusion" wording + summary typical of Chat GPT wording + sources list provided typical of Chat PGT.

Typical Chat GPT punctuation and wording:

Example of Chat GPT prompt that created a very similar article:

All other recent posts follow the same structure.