I think conspiracy theories are mostly retarded and a distraction. Most of them are absurdly far fetched and people spend hours "researching" them instead of doing something useful. In the end, this is wasted time because it´s impossible to prove or disprove most of it. On top of it, it´s probably unhealthy because while doing their "research" people get all riled up and stressed. And for what?

There was an interesting post in the science territory on association between poor sleep quality and conspiratorial beliefs: 919840