These tools give a lot of wrong information. We see a lot of misinformation especially in languages other than English.

In some cases it is necessary to try to understand with common concepts. If you look carefully at the style of writing, starting, presentation, finishing, you can understand whether the writing is original or not. Some writing is like sharing your experience or describing an incident that happened to you, it would be silly if we mark that post as AI generated content. For this, first one has to get an idea about the type of content, then check with various detector tools and then come to a decision.

Notice the picture below. This article is written by me. But here it is identified as AI generated content.

Thank you very much for researching this topic @rme .