There is a thin line between belief and religion, and many Billy Meier disciples view it as the latter, without even attempting to specifically defend the multiple glaring in-consistencies involved! Just to take a single instance, kindly explain the flying dino-bird? Could it be a case of the MIB's painting a portrait of Billy's photo, purported to be from distant pre-history, then time-travelling themselves back to the more recent past and hanging it in the museum - all in an effort to debunk him!
The scary thing is many believers probaly view this as a credible scenario!