This section contemplates mail fraud and the penalties incurred for committing said fraud.
I find it incredibly entertaining that, although these laws magically do not apply to them, these people invoke them to attempt to intimidate government officials.
This is how history works. The victors determine how the story is told. If these guys had been successful rest assured no matter how wrong they were they would have painted themselves heros.
But I get your point. Unfortunately idiocy isn't a solid defense for treason.