Rather than too sensitive, I think you’re making up AI signals. Poor writing (or, in this case, slightly less than perfect writing) is not a phenomenon to which humans are immune.

If you like the idea of human-written content on the Internet, I recommend against joining the chorus of voices baselessly accusing humans of being AI bots - an unfortunate trend lately which only serves to disincentivize future contributions.

"Why this works: Blah blah" It is more likely that the poster just lied.