The thread says repeatedly that Amazon is the seller...

https://twitter.com/billpollock/status/844037804237709314

https://twitter.com/billpollock/status/844038535388823552

https://twitter.com/billpollock/status/844274765154205696

https://twitter.com/billpollock/status/844271713256951808

My understanding is that Amazon mixes their stock with items from other sellers as long as they have the same sku. If this is true there is no benefit in buying things sold directly from Amazon.

That doesn't work at all to solve this problem.