Here's a short guide.
If you see this mark, it's the mark of M2C.
The mark of M2C is identifiable by the Mayan icon in the upper right. It is used to let people know that anything published under or by this mark will promote M2C (the Mesoamerican/two-Cumorahs theory).
There's nothing wrong with M2C. People can believe whatever they want. This mark is actually quite helpful for identifying the editorial position involved.