Related indeed. Those two posts illustrate the utility of troll posters, providing as they do so many opportunities to collide truth with error. Too bad so few trolls visit the exchange counter to rid themselves of error.
“The peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it. If the opinion is right, they are deprived of the opportunity of exchanging error for truth: if wrong, they lose, what is almost as great a benefit, the clearer perception and livelier impression of truth, produced by its collision with error.”