Rubbish, they have probably not tested it correctly or for long enough. But what ever they did if they think it is a cure they are deluding themselves. This is the sort of miss information that floods the internet.
You seem to have the “ well it is on the internet so it must be true” mentality.
Look how many posts you can find saying you don’t need a resistor with an LED, it doesn’t make it true no matter how high the number. It only goes to show how many idiots there are about these days.