Were the Bosnian Pyramid inscriptions faked?

My February 1st post has a photograph of inscriptions in tunnels under the so-called Bosnian pyramids. However, according to the Wikipedia article, Bosnian Pyramids, alternative archeologist Robert Schoch says:

The much-touted “ancient inscriptions” seem not to be ancient at all. I was told by a reliable source that the inscriptions were not there when members of the “pyramid team” initially entered the tunnels less than two years ago. The “ancient inscriptions” had been added since, perhaps non-maliciously, or perhaps as a downright hoax.