Actually it doesn't matter when they leave the feedback. Multiple feedbacks from the same user will count if the ITEMS are purchased (not paid for) in separate weeks.
A "week" is either Sunday to Saturday or Monday to Sunday (don't remember which).
Apparently this will be retroactive for your overall Feedback score, don't recall if it's retroactive for dsr's as well.
Don't know what my actual number will be but I expect I'll be a shooting star the day they implement this, side effect it should raise my rating from 99.8 to 99.9 and maybe even 100%, a bit hard to tell because the score will also be based only on the previous 12 months.

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915
- answering Trolls is voluntary, my policy is not to participate.

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915
- answering Trolls is voluntary, my policy is not to participate.