All I read was that Meltzer and Schoch feel that they warrant further study. What's wrong with that, Ian? You apparently missed this:
Quote
"Meanwhile, on the basis of the available photos, Robert Schoch noted that the glyphs are often covered with lichens and he suggested that the lichens could be carbon dated which in turn could help to confirm or refute an ancient date for the inscriptions. A colleague of Schoch's is the world's leading expert in the study of lichens."
If these lichens refute an ancient date, then Schoch would be the first to report it.
Steve LeMaster
