Yes I saw that post which is why I bought them, I ordered some from the web site recommended but then purchased some to eat while I was waiting for my order. The berries I bought from my health food store are called "the tibetan goji berry" from the tibeten goji berrry company, they have a web site online gojiberry.com.
I can tell that these are highly mineralized, I no longer am taking my minerals or vitamins because the berries give me a lot of energy.
Oh and yes there are differences in the berries for sure, I've tasted some that were sold by the pound in the health food store and I really didnt like the taste at all, they were also bigger than the ones in the bag and less sweet. I cant get enough of these they are so yummy and unlike other dried fruits that make my teeth sensitive/hurt these do not. I had no great expectation for the berries and they are really surprising me.