First of all, there has been plenty of evidence against woodcollector
such as the previous posts in the forum asking for help with lasers,
the line markings that people have pointed out, the dishonesty about
vectors and African woods, etc.

Second, he could have chose to ignore the accusations and said "whatever, prove it" but he did not.
He chose to take on the burden of proof when he made the video, attempting to prove
his skill at hand carving.