A thing that notably triggers my allergies is that if significant human effort went into something, a few paragraphs written by a human seems like a trivial additional investment; if that last touch is missing, it's really hard for me to extend the benefit of the doubt that there really is something there.
Obviously this is only one signal among many, one that can be overruled, but the ick remains regardless.
Obviously this is only one signal among many, one that can be overruled, but the ick remains regardless.