It is consumed diluted (I think the vendors suggest to mix it with lemon juice or so) and only few droplets a day, so it's not that bad as drinking industrial-strength bleach.

And it could actually work.

To me, EY's post is a couple of unfavorable case studies.

Case Study 1: Treat a substance as if it had a "curing/harming property" as an out of context absolute - out of context of treatment protocol, dosing protocol, or the particulars of a patient.

We see this all the time. Newspaper headline: "Substance X cures/does not cure disease Y." Of course, both could be true for different treatment protocols. For that matter, both could be true for the same treatment protocol but for different people.

Here's the place with directions for using this stuff: http://miracle-mineral-supplement.com/instructions-for-taking-mms/

Always use 5 drops of one of these food acids to each one drop of MMS, mix in a empty dry glass and wait at least 3 minutes, then add 1/3 to 2/3 glass of water or juice and drink.

http://en.wikipedia.org/wiki/Miracle_Mineral_Supplement

When citric acid or other food acid is used to "activate" MMS as described in its instructions,[8] the mixture produces chlorine dioxide, a potent oxidizing agent used in water treatment and in bleaching.[9]

And at the Wikipedia Chlorine Dioxide page, they show how it is used in water treatment, and the conditions for which it is superior to the use of chlorine. http://en.wikipedia.org/wiki/Chlorine_dioxide#Uses

Now, I don't know if the MMS protocol simulates a beneficial water treatment in dosing terms, but I'll bet a nickel that EY didn't either when he wrote this post.

Case Study 2: Confirmation bias on "the world is full of morons."

EY writes:

We can always use more case studies of insanity that aren't religion, right?

My brain is still not pessimistic enough about human stupidity.

If you're just looking for case studies of idiocy, and you habitually tell yourself that you're not pessimistic enough about human stupidity, are you likely to look for the sense in what people do or say?

To combat this, when I see something that looks stupid, I try to remind myself that "The other guy might not be a moron." In this case, it wasn't really that hard. I have a historical antipathy to Case Study 1 (ny own confirmation bias was at work), and the other comments provided hints and pointers to relevant information.

With these facts available from wikipedia, wouldn't it be reasonable to think that the MMS folks had actually worked out dosing based on their treatment protocol, so that it in fact did simulate a perfectly safe and beneficial water treatment method? If they're not morons, they can use wikipedia, they don't want to kill anyone, don't want to be sued, and would hope for some beneficial effect that helped sales.

I doubt that this cures whatever ails you, but very likely some guy just figured he could make money if he sold something, that when used as directed, amounted to home water treatment. If he was just a quack, there would have been a zillion and one things he could have thrown in water and sold - seems like a huge coincidence for him to happen upon something used in water treatment.