Some people, as World-Traveller says, don't know all the things they can add to a hub. However, I've just looked at the writer's profile of the subject of this question, she's been a hubber for 3 years and written many hubs, why is she not inviting comments?
I have seen hubs, generally religious writings, where there is just a tirade of assertions and nowhere to make a comment, basically, the argument of bigots - 'this is what I have to say on the matter and I'm not interested in your thoughts.'
Is this hubber like that? I don't think so, but, you never know.