The keys to the definition of kook are held by the government. If you want to know the truth, you have to ignore the label kook.
That doesn't mean that all kooks have the truth. It means that the label kook is often a slanderous title used to hide the truth.
Look at syzygyjob.com, and see the earthquake prediction by Jack Coles. He's rotting in prison even as he does it, calls in his predictions by collect call. I have no idea what he did or is supposed to have done to warrant prision, but I do know that Jim Berkland has asserted on the www that he was committed to a mental hospital for the offense of saying to the court that his occupation was earthquake forecaster.
Now,. I suspect that Coles is misinterpreting his data. I think that he believes that the radio signals he gets are piezoelectrically induced, whereas they may be simply the result of the reflection of broadcasted waves, off microdust in the atmosphere, caused by slow-slip quakes. Big whoopdedoo. He can be wrong; I'm probably wrong; but that doesn't make his statement that he is an earthquake forecaster false. Nor does it require a person to be committed to a mental hospital.
That is the power that our government wields, Are we now in an age, when nonconformance means assignment to a prison, without rights, under the name of "mental health"? So what is the difference between that, and the Nazi government before it destroyed a quarter of the world, ending with Germany and itself?
If you want to have a chance at knowing the truth, drop the term kook. Or take it as a badge of nonconformance.