You do not need to give this advice to people and mislead them. It could cost them thousands of dollars that some people do not have.
The magnusson moss act will not protect you in this case. Here is why. The magnusson moss act does not allow a company to tell you that you MUST use their parts or fluids. They state that IF an OEM equivalent is available that you can use it. No one has been able to PROVE that they have an equivalent to Nissan's fluids. Only claim it on websites. I have called two companies requesting in writing that nothing will happen to my transmission if their fluid is used in place of the J and they refused!
Now the problem with the difference in fluids is one ingredient. Since you know so much about it, let us know what it is and what the function is without doing any kind of search. I will give a hint, it has to do with the metal that the internals are made of.
I have an idea. I had to do lots of tests to prove myself around here, how about you do the same. The tranny's are made to last 300,000 miles or more. How about you put some different fluid in your transmission and give us reports. After all since you profit "$300,000 from a single home sale", own a "fleet of F150's" and own a "6-figure toy", tearing up a transmission would be nothing to you. Go get it done, get an analysis of the tranny fluid and your mileage and post the sample. Then get it flushed with a valid receipt and then get an analysis done every 5,000 miles and show the report. That way we can look at the contents.
After doing this, you could gladly prove us wrong. Wouldn't that be fun.