Sounds like a problem that needs a grass roots foundation. BRS investigates is great but they are a (very caring) company and should be expected to investigate things they sell. That's their job. There is certainly little money in fish disease outside commercial aquaculture but how many hobbyists are there who have problems and could use some real science backed info? How many companies might benefit from it if all they can afford on their own is a single chemist? @Jay Hemdal , @Randy Holmes-Farley , @Humblefish and many others with lots of R2R badges do us a great service here and are legit heroes of the hobby but I think all of us would benefit immensely with some funded, peer reviewed scientific studies.I agree, new testing is needed and true peer reviewed studies need to be produced. Trouble is, there is no money in it, and everything runs on grants now. You may or may not know, but there is no real R&D in aquarium companies - at most it is a single person with some chemistry background, and at worst, the company just repackages old ideas.
If I were nearing retirement, a Reef Aquarium Research Foundation might be a pretty cool way to spend the next phase of life. Hobbyists like us might donate a little. Companies and industry groups might donate a lot. Imagine what could be accomplished with a growing foundation if a real peer reviewed study of Ich could be done for less than $10k. I imagine the politics behind it would be painful but some people thrive on that.