Anything above 50%. I think the question should be directed more to what AI detection tools should be used instead of the percentage of AI texts posted. The free software are usually limited but the paid versions should be more accurate.
You said exactly what i was thinking and was going to say, the question should really be which Ai detection tool that would be effective and well trusted enough to use, that will be efficient and reliable in being able to accurately detect Ai written posts.
A long time ago when the issue of Ai generated posts became a common problem on that other forum, which made a lot of high ranking users to begin paying attention, someone shared a tool which was really effective at that time, but unfortunately, I can't remember the link to the site anymore.
So, instead of us discussing at what percentage level a post should be considered Ai generated, and the poster tagged, I think for now, we should focus more on finding a great tool that works effectively and accurately in detecting Ai generated posts.