Tesla had a scientific foundation for inventions like alternating current because he could do the experiments.

He didn't just story-tell about how they might be true like how Peat claims walnuts are carcinogenic due to unsaturated fat and sucrose cures disease and his other crockpot ideas.

When one or two of his ideas happen to sound reasonable, it's the research that should get the epistemic credit, not a guy shotgunning 100 dumb ideas. What about all his claims that go against the evidence like avocados being carcinogenic due to unsaturated fat?

This is a common problem with cult followings. Their followers keep bringing you claims to debunk, they watch them get debunked, and they never stop to ask themself why they are still playing human centipede with the guy shitting these claims into their mouth.

And debunking claims is how we know the earth is round and the sun is at the center of the solar system. It sounds like you're real issue is with the cult followers who believe everything.

His followers might have serious health conditions and might be grasping for straws. You can't blame them, really. Better to address the source of overstated claims.

Also, if someone tells lies then even if there is only a small fraction of people who believe them, then the law of large numbers on the internet says that these lies will get amplified.