Excellent theory, Gonk. However, considering that all three of them have one thing in common - not answering direct questions about the validity of their product - I'd be surprised if they weren't all part of the same marketing ploy.

First step - introduce the product on the forum, spurring the inevitable debate about it. Next step - offer a free sample to the forum mods to pass around to the forumers. The last step, which happened at Audio Asylum but not here, would have been the forumers posting reviews of this thing as they pass it around (and thus lending credence to the idea that it might work).

Failing that, the next tactic would be to send in the trolls, try to make the forum regulars seem petty and ignorant for naysaying, and hopefully spur some forumers to open their minds to the underlying doctrine.