>>iamacy+aP
I'm not sure that this is a useful distinction. It starts to sound an awful lot like philosophy 101 "what is a p-zombie" horseshit... if both people are asking the same questions or using the same rhetoric, why would their internal, unknowable-without-telepathy intent make any difference whatsoever? If you do think there is an actual distinction, somehow, even then should you care? Because people who want to censor the speech will just label the skeptics as cranks anyway, and shut it down.
"Crank vs sincere skeptic" is fallacious, as it attacks the person and not the argument.