at first I laughed pretty hard at your post. This first paragraph pretty much says I have no clue what I'm talking about so don't waste the time to read the rest of the reply.
The CAS numbers to every chemical in it is right on the can. First problem you seem to have is, you don't know what a CAS number is. You must first learn what they are and what them chemicals do for water emulsion in gas and what they do to clean varnish and sludge. After that you will know the benefits of each chemical in it. You seem to think it is water based because seafoam is on water, well naturally occurring seafoam is not water. It is hydrogen peroxide, and it foams on the beach, hence the name.
My aveo, just like every other car, truck, motorcycle I have owned is maintained better than it should be. This is the first time I tried it. So after 5 full tanks and getting an actual logged 44 miles more per tank at today's low gas prices I have saved $$. Just did the math. The can costed me $6.89. Now in your world this may be wasting money, not in mine.
I am am not some bubba just spewing BS and regurgitating an advertisement. I am telling you my 99,500 mile aveo is getting 4+mpg better after a single use in the gas tank. This may be hard for you to understand, but as I sit here logged into reality it looks pretty good to me. Saving $7.58 so far May not be a big deal to you, but it is to me, especially that I plan to use it again when mileage looks like it is starting to drop again.
I am just clueing in some members into something that might also help them. I fully expect it to fail miserably if people expect it to fix mechanical issues due to abuse. Nothing in a can will fix a car. But a well maintained high mileage one might see the same gain I did. This is what my concept of any forum is. We share those things that can help, and share things that will hurt. If I seen a drop I would have made the same post, just letting people know it hurt instead of help.