Using face validity to check AI-generated content might be highly deceptive. I read that one of the ways of identifying them is that they usually have no grammatical or spelling errors. But with the popularity of Grammer checking tools like Grammerly which help writers to produce close-to-perfect writing, this method of identifying these AI writing will not work. As Lucius rightly pointed out, the best option is to check these suspected posts in more than one detecting software.to check its authenticity.
The typical methods of identifying AI-written content aren’t always reliable because chatbots and rewriting tools have become more sophisticated. Most of them now have settings which allow users to generate more human-like text. I’ve also seen campaign cheaters in the forum who seem to intentionally add misspellings and wrong punctuations to try and bypass detectors.