I have never used AI before and I do not plan to do that soon even in my academic work (when I start my post graduate programs) as I find it a little lazy. With this result, I completely doubt the authenticity of those AI detectors and it simply means that anything written in fine and error-free English will be flagged as AI generated. I think we have to come to a consensus before a bad AI detecting tool causes chaos in the forum.
Posts that are under 10,000 characters, which most posts on this forum are, will have a higher rate of false positive. In my experience, Sapling.ai has one of the highest rates of falsely saying something was generated with AI, that’s why I only use it as evidence in an accusation when at least 2 or more other AI detectors agree with it. In your case, I checked your post on three other detectors which appear highly in search results and the results were 0% probability on two of them and the third was only 5% probability of being AI-generated.
I also don’t get the sense from any of your recent posts that you use AI. Any reasonable person, looking into suspicious accounts, would quickly move on after seeing your post history.
Even though false positives exist, it is still worth investigating accounts that are actually spamming, as long as we look at a full body of evidence rather than just a single result from an unreliable tool.