I guess you didn't notice the screenshot I posted. I asked ChatGPT if it generated those contents, and it said YES. All of the content posted by this user was generated by ChatGPT. I don't think there are any other ways to check those except asking chatGPT because the AI detection tools available on the internet do not support checking local languages. So, Asking ChatGPT if it's generated those contents will give you the most accurate result if it was generated using ChatGPT. Someone may use other AI tools to generate such content, in this case ChatGPT won't be able to detect them.
Yes, thank you, I see and understand, but ChatGPT can lie.
So it is not a 100% guarantee. I don't deny that it can be written by ChatGPT, but I read his posts and I'm not sure, so I gave him a warning just for the low quality posting. Probably some other moderator will add another warning. If he will continue, we'll see or some longer posts to be sure that they are AI written or the same LQP to give more warnings or a negative badge.