Early on, the organization figured out that the single biggest predictor for if someone believed conspiracy theory x is whether or not they believe conspiracy theory y. There seemed to be a general propensity to believe in conspiracy theories in general, regardless of the specifics of any one theory. Mole people, black helicopters and the faked moon landing are all, somehow, of a piece
This presented something of a challenge to the recruitment office, who wanted to find a process to screen out the more dedicated theorists without also scaring off more grounded candidates. Initial attempts to ask about unrelated yet conspiracy-adjacent topics, so as to indirectly suss out whether the person had a propensity for such thinking, were called off after a rumor began circulating that one of the standard questions was related to aliens. That was not the particular kind of attention they needed at the time
At length, they figured that the best way to find out was to give the prospects an informal communal free lunch. Those whose conversational topics trended towards the conspiratorial could easily be identified, and those who were merely nervous about the possibility of being hired could be ushered towards that very possibility. The success rate was not 100%, but it more than made up for the cost of the free meals. Overall, it was one of the better counterconspiracies of the organization