Well, her meta-point is that no one checks sources anymore. So someone makes up a fact, or quotes a fictional research proving the fact, someone else quotes that in their book, yet another person quotes the previous book... and soon "everyone knows" it.

And if someone checks the sources, they usually don't go beyond "the book A cited book B, and the book B really contains it, so everything is okay" (while the problem is that the book B quotes an organization that denies ever making that kind of research, or the book B makes the opposite conclusion than the original research).