Paid with a credit card and now I am paranoid about privacy — 6 month update

Dr.SurgeonPGH said:

It helps to say which part of this you are uncertain about.

There is a second half to this that has not been said yet. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.

The figures, for anyone assembling their own picture. Keep the original post as written when you update it, and add the correction underneath. An edited-away mistake is invisible to the next person who makes it.

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

Was that from a primary source or from a summary of one?

dan_philly said:

Keep the original post as written when you update it, and add the correction underneath.

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.

Happy to go further on any of that.

dan_philly said:

Keep the original post as written when you update it, and add the correction underneath.

True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.