If someone else is making false claims, show how the claims are false, so we can all learn something. Don't just tell that they're false and especially not in noxious ways like this. Not only do you poison the community when you post like this, you also discredit any truth that you're trying to defend: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...
Other commenters have expressed skeptical reactions while staying within the guidelines. Please be like them in the future.
By the way, the claims in the OP probably are too good to be true, because most claims are too good to be true. But if we're to have an interesting forum in the long run, people need to correct bad information by respectfully providing good information, not by bashing each other in uninformative ways. Perhaps you don't owe someone who is making false claims better (I'm speaking only of the general case here, not the OP)—but you definitely owe this community better if you're posting to it. Please do better from now on.