Legitimacy. If you appear neutral in your descriptions, then  when you say that their stated goal is to &quot;usher in the apocalypse through conquest, rape, torture, and murder?&quot;, people are more likely to take that seriously and consider for themselves how to view them (and likely arrive at the obvious conclusion).<p>However, if you appear biased, then people are more likely to question the validity of what you are saying itself.