It's important to remember the distinction between conspiracy, an act of covert collusion, and conspiracy theory, the free association and riffing upon inconsistencies, real or perceived.

I think that conspiracy theories are in the same bucket as paranormal or religious stuff. These are people looking for explanations to things they can't, don't, or won't understand. They grasp at straws and then double down based on faith especially when their beliefs are contradictory to reality.

Communists lean on materialism, that is the real, as our primary philosophy for explaining the world around us. This is inherently contradictory to unfounded faith. What I mean is that the process by which conspiracy theories are created is inherently in opposition to the way that Marxists seek to explain the world.

Rather than gravitating to the process of hallucinating a narrative to justify your pre-existing beliefs and worldview, a good Marxist should instead seek to analyze and explain the "weird stuff" by doing actual investigative work firsthand and then doing good journalism yourself.