Anders Bjorkman, for example, is not a crank because someone calls him a crank. He is a crank because he
is a crank. We know he is a crank because
he delights in telling us he's a crank.
As for Bjorkman, the reason people laugh when you bring him up is because
he is a crank who delights in telling us he's a crank.
I am probably not the only person on earth who finds it hard to believe that someone whose understanding of physics leads him to deny the physical reality of nuclear weapons could be a qualified ship architect. He might well be a ship architect, but a qualified ship architect would not be so dismissive of 20th and 21st century physics.
Björkman delights in presenting the abstract idea that "a
nuclear explosion is a deception or a joke! It has never happened!"
Björkman's abstract ideas have been attacked, as well they should be, because that's what good debaters do.
What bad debaters do is to appeal to the personal authority of an obvious crank because (1) they lack the knowledge to address the technical issues on their own, so (2) they must resort to appeal to authority, but (3) cannot find any credible authorities who agree with them, and must therefore (4) appeal to the authority of an obvious crank.
Björkman's ideas are interesting for the same reason that
Cotard's syndrome is interesting.
@Vixen merely hears his ideas, considers them seriously, and pretends her consideration of this obvious crackpot's ideas should be taken as evidence that she is "objective and applying reason", hence "far better than following the crowd":
What's pathetic is the idea that giving serious consideration to Björkman's ideas could be a sign of objectivity and reason.