https://www.schneier.com/blog/archives/2013/06/the_psycholog...
I argue that conspiracy, or key elements of it, is a natural part of human behavior. You can see it in all kinds of legitimate things. You can also see it in many criminal activities. A subset of it would be what we traditionally call a criminal conspiracy good enough to leave only breadcrumbs. The conspiracy theories... one's using good investigation rather than cherry-picking... have to find and tie together these breadcrumbs to derive the hidden activity.
Academics almost exclusively tend to analyze why people must be wrong-headed if they investigate conspiracies, err, criminal activity. Instead, they should look at those that were proven right and wrong to identify data points for criteria or heuristics to help investigators get it right more often. What constitutes good evidence of a probable conspiracy vs what is just bias of researcher? A valid question and form of research.
However, it's nonsense and defies common sense to have their assumption that conspiracies don't happen and investigating one is equivalent to mental illness unless you have a confession in hand from perps.