This was my experience. I posted some actual acquired data showing that a headphone accessory made by one of their sponsors did nothing, then took it apart, analyzed the "magic" materials using XPS and SEM, and included the results of that analysis (narrator: They weren't magic). Poof, gone within a day. First and last time I ever used that website.
Years ago i posted in a thread extolling the virtue of an expensive wooden box claiming to be a very effective earthing unit for hifi use and I merely pointed out in a very easy to follow fundamental electrical basic high school physics that everyone will have been taught that proved it did the sum total of sfa except furnish the manufacturer with their cash.
Got my post removed and a PM warning from a mod not to continue with such posts in the future otherwise my account would be reviewed.
Guess some folk just don’t like truths.