chris_chi24 said:

Update — I was wrong in the opening post, specifically about the direction.

This matches mine closely enough to be worth saying so out loud.

chris_chi24 said:

Update — I was wrong in the opening post, specifically about the direction.

Coming at chris_chi24’s question from a different direction. The pattern that distinguishes a bad batch from an exit is behaviour rather than product. A bad batch comes with communication, a reshipment offer and a batch number. An exit comes with slower replies, pressure toward less reversible payment methods, sudden discounting, and the same reassurance repeated without any new information. The product tells you less than the correspondence does.

One concrete data point for the thread. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.

Following on from chris_chi24 — and this may be the naive question:

How would you tell the difference between that and the alternative explanation?

Dr.NateNeph said:

If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.

I read this differently from Dr.NateNeph, on substance rather than tone. Not convinced. The evidence being cited is consistent with the conclusion and also consistent with two other conclusions nobody has ruled out.