Many AdSense publishers reported huge drops in traffic and earnings on those days. Some said earnings were down by more than half. Some reported their earnings dropped due to their traffic dropping. Who made money on this day, those who were writing about the Thanksgiving theme?
In any event, not everyone lost money. Many reported earnings to be stable and "normal," as if there was no holiday.
One would think that typically internet traffic is lower on a day like Thanksgiving, with all the travel and families getting together.