I'm afraid that this is false, mate. How did you come to such conclusion? I have now been writing more elaborate and consistent posts due to the fact that I now have more time to spare. What is the use of checking if members write AI-generated content, anyways? To get them banned or penalized by forum management for no reason?
Hmm, I could replicate similar results with ChatGPT, all detectors say that it's written by AI, but the most important of all? It's not ChatGPT, it's DeepSeek, which also shows that it saves any inputs it generates. Here's a screenshot claiming that it wrote your reply.

That's weird. I mean, I can tell the content was written by myself. I did correct spelling and grammar using Word, though. Could it have been the integrated Co-Pilot AI "plugin" ? New versions of Microsoft Office have Co-Pilot integrated on them. That might be the culprit.