must be an advanced nutes stockholder.
LOL. I'm as much an AN stockholder as you are a MG stockholder. Though you're definitely taking this all a lot more personally, so you may well be...
Nitrogen is nitrogen, phosphate is phosphate etc,etc,etc.
Sure, but fertilizers aren't pure nitrogen, phosphate, or whatever. They're made up of chemical compounds that dissolve in water. Different compounds dissolve at different rates. Plus there's buffers, chelators... there's more to it than just the NPK. But you knew that, right?
The shear volume of plant physiology and chemistry involved with selecting one ingredient over another is staggering.
It's very entertaining, I'm sure, to attribute all the people who say MG is crap to some vast corporate conspiracy. There's probably another corporate conspiracy behind our belief that the Earth is round and the sky is blue.
Or maybe it's because those things are really true.
Just because a lot of people say something doesn't make true, but it doesn't make it false either.
If you're growin quality weed the nutes have no bearing on taste or potency as long as you're doing everything else right.
That's pretty much true, but if your nutrients just plain suck - they don't have the right stuff, have it in the wrong proportions, or have the wrong stuff added in as well - you're not going to get as good a product at the end. Yes, I've seen some very nice plants grown (at least according to the claims of the grower) with MG stuff. But for every one of those plants I've seen at least 50 burned little sticks.
You can probably hit a home run with a hockey stick if you swing at enough pitches. But if you want to hit a home run the only logical tool to pick up is a baseball bat.