Who knows... but it is funny that healthy skepticism can transform into this kind of acceptance. First disbelief, then, well ok, maybe but if it is, it’s probably not the suspected entity, but an altogether different entity... it’s like multiplying probabilities but thinking it increases likelihood.
Conspiracy theories do love the combination of the whataboutism and the competitive debate strategy of "spreading" where you make lots of weak (or better yet, completely unsubstantiated) points, and if your opponent fails to refute everyone, you win.
