VPN usage when ordering peptides — my results so far

A narrower follow-up, since the general answer is now clear:

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

MaxMetOK said:

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

I am going to disagree with the direction of travel here. The thread has converged on the tidiest answer rather than the best-supported one, and those are not the same thing.

MaxMetOK said:

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

Agreed, and the size of the effect matters as much as its existence. Something real and small gets treated here as though it were real and decisive.

MaxMetOK said:

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

Saving this. It is the first explanation that did not require me to already understand it.

Adding the clinical framing, because it changes how the question reads. Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then measure again under the same conditions.