It's a scam until they publish a paper with the reaction mechanism and the amount of energy it takes to create HH0...and keep it stable.
Technically, it would have to be a "peer-reviewed" paper, but yes.
That's the difference between science and magic. Real science isn't something that a bunch of nincompoops sit around and ARGUE about; it's something that you TEST and either prove or disprove.
If this were real, there would have been a peer-reviewed paper, and people all over the country would be saying: "Yep, we were able to do the same thing, and it we got exactly the same result as the wizard engineer who invented the thing."
Some people are smarter than others; there's absolutely nothing wrong with that. But it's frankly appalling to me how many people alive today don't have a CLUE how technology works. 500 years ago, there would be an excuse for this kind of confusion, but not in this day and age.