Few denies President Park was grossly incompetent in how she behaved during and after the Sewol ferry disaster. Also, the ferry was illegally and unsafely modified and then overloaded. It was a ticking time bomb: its sinking is a classic example of "everything that can go wrong went wrong."

But some people aren't satisfied with that, they think it's impossible that such a big ship would turn over by accident, so they need a villain with a human face. Ergo the conspiracy theory of somebody intentionally killing hundreds of people. And because nobody can explain why anybody would gain anything from such a heinous act, they invent a story of a human-sacrificing cult.

Imagine being a parent who just lost a child to something like that, and being told by people that there is a villain who murdered their child, and the only way to uncover the truth is to fight and protest on streets. For years. Forever. Until the "truth" is uncovered, which will never happen.

It's truly one of the most reprehensible mind viruses I've seen in Korea.