The board itself does nothing. If one was hidden in your house without your knowledge, your domicile would not suddenly become haunted. A person’s belief in the board’s claimed abilities opens them to the possibility of influence by malevolent forces.
Correct and well stated.
99% of Ouija stories out there are BS - just like the vast majority of tales of hauntings and the like are not to be believed as most are nonsense. Saying that, there is always a risk with these conduits that an unlucky person, particularly someone who has weakened their spiritual defenses against wickedness (in ways that we really can't understand), will open themselves up and invite an evil into their lives that initially masquerades as something harmless or perhaps beneficial.
The bible is pretty clear about avoiding this kind of stuff for a reason.