These products will forever be available. With so many variables controlling the success/failure of a tank, it is a perfect opportunity for marketers to take advantage of the hobbyist making a Type I error. Even if the buyer only sees good results once, he'll likely bite for the rest of his life. I know you mean well, Tom. But, as long as people continue to carry severed Leporidae limbs for good luck, there will always be a market for unproven additives.
I pity no one who buys snake oil. They have access to the same info I do.
Yep, but I do give the old speil every so often to those less inclined to consider such things. We cannot save everyone, but we can save a few.
So such efforts are still worth while IMO/IME.