My own experience is that my on-line MR account shows all stays, including free night and free weekend certificate stays.
This can be confusing because there are sometimes also errors in the total nights stayed. And it's not always easy to remember at the end of a year when I used a certificate.
I suggested to the Gold Member line that a column be added to the on-line account showing the number of nights credited.
Does that strike people as useful? Socrates, does it strike you as doable?