Before you write something, it would be wise to check the historical facts, because what you claim is simply not true. Each of the posts in question could have been created with the help of AI, because at that time they existed and were publicly available.
A guy who shows in this topic that his level in English is not really bad, but who still forces the idea that ChatGPT could be used for language improvement. I suspect that we probably have here the face of a farmer who is upset with many tagged accounts and who is trying to make majority doubt about fighting with AI posting.
AI legitimization is what farmers are very interested in. There are many alt accounts which trashed forum with AI posts and they want to do so further. So they are bringing up this topic again and again.
AI posting should not be tolerated. The total majority of forum users never use it and prefer to communicate with real people and not with hidden bots.