Originally Posted By: TheFallibleFiend
Here's pretty good site that differentiates science from pseudoscience.
Here's pretty good site that differentiates skepticism from pseudoskepticism :

http://psychology.wikia.com/wiki/Pathological_skepticism

The following are typical characteristics of pseudoskepticism :

Characteristics of Pseudoskepticism
  • The tendency to deny, rather than doubt
  • Double standards in the application of criticism
  • The making of judgments without full inquiry
  • Tendency to discredit, rather than investigate
  • Use of ridicule or ad hominem attacks
  • Presenting insufficient evidence or proof
  • Pejorative labeling of proponents as 'promoters', 'pseudo-scientists' or practitioners of 'pathological science.'
  • Assuming criticism requires no burden of proof
  • Making unsubstantiated counter-claims
  • Counter-claims based on plausibility rather than empirical evidence
  • Suggesting that unconvincing evidence is grounds for dismissing it
  • Tendency to dismiss all evidence
  • Resorting to logical fallacies in order to justify rejecting the position or argument of another.
  • Claim that science already knows everything, and since it doesn't include the evidence od subject, subject can't exist. Such stance is often referred to as scientism.
  • Assuming unverified or incorrect facts to justify a predetermined skeptical conclusion.
  • Obfuscating easily verifiable facts to justify a predetermined skeptical conclusion.
  • Instituting hurdles against new theories by "moving the goalposts".
  • Displaying a reactionary, hostile and intolerant stance regarding new ideas.
  • Judging a hypothesis or theory without investigation and insisting on ignoring the details thereafter
  • Organized Skepticism tends to become automatically pathological