I haven't been following that thread but I do know there have been dozens of inventory cars on Tesla's site with discounts of $30,000 or more. You just have to search their listings to find them and these discounted cars are available to everyone.
Did Aaron's email indicate these were only the "hidden listings" that you are referring to or was he referring to the publicly listed cars? I'm sure everyone who asked about any discounted cars would receive the same discounted price.
They're more or less "lazy" hidden. If you go to Tesla's site and search for inventory models (S or X) with a 100kW battery, none are listed. If you go to teslainventory, you can see 40 100s, 22 of them new. As long as you know the VIN of a car, you can link to and order it on Tesla's site.
Having to use a 3rd party site or talk to an OA, gives the impression there's something shady going on when Musk claims nobody gets discounts.
Personally, I think they need to standardize their terminology (price adjustment), make all the inventory models available for searching on the Tesla site and clearly explain the reason for the price adjustment.
Something like....
Adjustment: $32,400
P100D base price adjustment ($5000)
Legacy Premium Package now standard ($5000)
Premium Interior now standard ($3300)
Subzero Weather Package now standard ($1000)
Tow Package now standard ($1200)
Mileage: 4813 miles ($4900)
Manufactured 2/17 (7%: $12,000)
You shouldn't claim not to have discounts, allegedly fire somebody for advertising discounts, have some form of price adjustment that's not explained clearly, call those adjustments discounts on half of your paperwork and make it so you can only find those price adjusted models by using a 3rd party site or having an OA search for you.