For me, growing up as a jw, just about everything was demonic. I lived in one of those over the top (even for jw standards) homes in regards that. Curtain moved with the wind, demons. Misplaced keys, demons. Horse got spooked, demons. Prank phone call, demons. ect....
Talking about demonic abilities apparently gives the demons more power and abilities. Umm okay. Yet the magazines and publications have pictures in them portraying satan, beast, demons killings, global desolation, famine, ect.... That jws will spend time studying , looking at, and commenting on.
We used to have semi trucks driving around that said ATDS trucking. I thought it said AIDS. Because I vocalized what I thought it said, the car was immediately pulled over and I got a butt busting on the side of the hyway. And long lecture about homosexuality.
Using the word 'magic' in my household was just about viewed like using the word 'fuck'.
To be a little balanced, not every jw home went overboard like mine did.
Why are things wrong? Because the GB says so. Many other religions do the same thing, because their leaders say so.