The voynich manuscript as a diabolic tool to lure people into mental health issues?

[Kaybo]

It does have negative effects on people, but there's nuance to it. The people where we see it take over their lives in a bad way (which there have been examples of throughout history) must have had a certain predisposition or vulnerability. 

I think a genius is always on the brink of insanity. To solve very difficult tasks you need to get one with subject and sometimes it eats you up.