No, I don't think that's it...there are, from time to time, quite a few negative comments there. At least before someone gets to them and deletes them! But even before they delete them, there are minimal comments.
I'm not sure that I have a high social media IQ either! I just think it's a combination of things. Facebook is not as widely used as it used to be, for one. A few years ago, people were all over her FB page. It's just not the case now. I don't know if that's because of her or because a lot of her demographic isn't on there anymore. Probably a combo of the two. David Ve